diff --git a/package-lock.json b/package-lock.json
index 8874d31a8ea255ec9c4b84e25dc7227f0d7ebcf1..aede478fa5583b0f1d4a70eb5148792455c64644 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5389,6 +5389,136 @@
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+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-6.8.0.tgz",
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+        "ajv": "^6.10.0",
+        "chalk": "^2.1.0",
+        "cross-spawn": "^6.0.5",
+        "debug": "^4.0.1",
+        "doctrine": "^3.0.0",
+        "eslint-scope": "^5.0.0",
+        "eslint-utils": "^1.4.3",
+        "eslint-visitor-keys": "^1.1.0",
+        "espree": "^6.1.2",
+        "esquery": "^1.0.1",
+        "esutils": "^2.0.2",
+        "file-entry-cache": "^5.0.1",
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+        "globals": "^12.1.0",
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+        "imurmurhash": "^0.1.4",
+        "inquirer": "^7.0.0",
+        "is-glob": "^4.0.0",
+        "js-yaml": "^3.13.1",
+        "json-stable-stringify-without-jsonify": "^1.0.1",
+        "levn": "^0.3.0",
+        "lodash": "^4.17.14",
+        "minimatch": "^3.0.4",
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+        "natural-compare": "^1.4.0",
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+        "semver": "^6.1.2",
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+        "table": "^5.2.3",
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+          "requires": {
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+          "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.2.1.tgz",
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+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
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+          "dev": true
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+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
+          "dev": true
+        }
+      }
+    },
+    "eslint-config-airbnb": {
+      "version": "18.0.1",
+      "resolved": "https://registry.npmjs.org/eslint-config-airbnb/-/eslint-config-airbnb-18.0.1.tgz",
+      "integrity": "sha512-hLb/ccvW4grVhvd6CT83bECacc+s4Z3/AEyWQdIT2KeTsG9dR7nx1gs7Iw4tDmGKozCNHFn4yZmRm3Tgy+XxyQ==",
+      "dev": true,
+      "requires": {
+        "eslint-config-airbnb-base": "^14.0.0",
+        "object.assign": "^4.1.0",
+        "object.entries": "^1.1.0"
+      }
+    },
+    "eslint-config-airbnb-base": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-airbnb-base/-/eslint-config-airbnb-base-14.0.0.tgz",
+      "integrity": "sha512-2IDHobw97upExLmsebhtfoD3NAKhV4H0CJWP3Uprd/uk+cHuWYOczPVxQ8PxLFUAw7o3Th1RAU8u1DoUpr+cMA==",
+      "dev": true,
+      "requires": {
+        "confusing-browser-globals": "^1.0.7",
+        "object.assign": "^4.1.0",
+        "object.entries": "^1.1.0"
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+    },
     "eslint-config-react-app": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/eslint-config-react-app/-/eslint-config-react-app-5.1.0.tgz",
@@ -5448,9 +5578,9 @@
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-      "resolved": "https://registry.npmjs.org/eslint-plugin-flowtype/-/eslint-plugin-flowtype-3.13.0.tgz",
-      "integrity": "sha512-bhewp36P+t7cEV0b6OdmoRWJCBYRiHFlqPZAG1oS3SF+Y0LQkeDvFSM4oxoxvczD1OdONCXMlJfQFiWLcV9urw==",
+      "version": "4.6.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-flowtype/-/eslint-plugin-flowtype-4.6.0.tgz",
+      "integrity": "sha512-W5hLjpFfZyZsXfo5anlu7HM970JBDqbEshAJUkeczP6BFCIfJXuiIBQXyberLRtOStT0OGPF8efeTbxlHk4LpQ==",
       "requires": {
         "lodash": "^4.17.15"
       }
@@ -5577,6 +5707,17 @@
       "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz",
       "integrity": "sha512-8y9YjtM1JBJU/A9Kc+SbaOV4y29sSWckBwMHa+FGtVj5gN/sbnKDf6xJUl+8g7FAij9LVaP8C24DUiH/f/2Z9A=="
     },
+    "espree": {
+      "version": "6.1.2",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-6.1.2.tgz",
+      "integrity": "sha512-2iUPuuPP+yW1PZaMSDM9eyVf8D5P0Hi8h83YtZ5bPc/zHYjII5khoixIUTMO794NOY8F/ThF1Bo8ncZILarUTA==",
+      "dev": true,
+      "requires": {
+        "acorn": "^7.1.0",
+        "acorn-jsx": "^5.1.0",
+        "eslint-visitor-keys": "^1.1.0"
+      }
+    },
     "esprima": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
@@ -8960,9 +9101,9 @@
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     "jquery": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.3.1.tgz",
-      "integrity": "sha512-Ubldcmxp5np52/ENotGxlLe6aGMvmF4R8S6tZjsP6Knsaxd/xp3Zrh50cG93lR6nPXyUFwzN3ZSOQI0wRJNdGg=="
+      "version": "3.4.1",
+      "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.4.1.tgz",
+      "integrity": "sha512-36+AdBzCL+y6qjw5Tx7HgzeGCzC81MDDgaUP8ld2zhx58HdqXGoBd+tHdrBMiyjGQs0Hxs/MLZTu/eHNJJuWPw=="
     },
     "js-levenshtein": {
       "version": "1.1.6",
@@ -9997,9 +10138,9 @@
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-      "version": "6.13.6",
-      "resolved": "https://registry.npmjs.org/npm/-/npm-6.13.6.tgz",
-      "integrity": "sha512-NomC08kv7HIl1FOyLOe9Hp89kYsOsvx52huVIJ7i8hFW8Xp65lDwe/8wTIrh9q9SaQhA8hTrfXPh3BEL3TmMpw==",
+      "version": "6.13.7",
+      "resolved": "https://registry.npmjs.org/npm/-/npm-6.13.7.tgz",
+      "integrity": "sha512-X967EKTT407CvgrWFjXusnPh0VLERcmR9hZFSVgkEquOomZkvpwLJ5zrQ3qrG9SpPLKJE4bPLUu76exKQ4a3Cg==",
       "requires": {
         "JSONStream": "^1.3.5",
         "abbrev": "~1.1.1",
@@ -10007,7 +10148,7 @@
         "ansistyles": "~0.1.3",
         "aproba": "^2.0.0",
         "archy": "~1.0.0",
-        "bin-links": "^1.1.6",
+        "bin-links": "^1.1.7",
         "bluebird": "^3.5.5",
         "byte-size": "^5.0.1",
         "cacache": "^12.0.3",
@@ -10050,7 +10191,7 @@
         "libnpmorg": "^1.0.1",
         "libnpmsearch": "^2.0.2",
         "libnpmteam": "^1.0.2",
-        "libnpx": "^10.2.0",
+        "libnpx": "^10.2.2",
         "lock-verify": "^2.1.0",
         "lockfile": "^1.0.4",
         "lodash._baseindexof": "*",
@@ -10069,7 +10210,7 @@
         "mississippi": "^3.0.0",
         "mkdirp": "~0.5.1",
         "move-concurrently": "^1.0.1",
-        "node-gyp": "^5.0.5",
+        "node-gyp": "^5.0.7",
         "nopt": "~4.0.1",
         "normalize-package-data": "^2.5.0",
         "npm-audit-report": "^1.3.2",
@@ -10266,7 +10407,7 @@
           }
         },
         "bin-links": {
-          "version": "1.1.6",
+          "version": "1.1.7",
           "bundled": true,
           "requires": {
             "bluebird": "^3.5.3",
@@ -10746,7 +10887,7 @@
           }
         },
         "env-paths": {
-          "version": "1.0.0",
+          "version": "2.2.0",
           "bundled": true
         },
         "err-code": {
@@ -11049,7 +11190,7 @@
           }
         },
         "get-caller-file": {
-          "version": "1.0.2",
+          "version": "1.0.3",
           "bundled": true
         },
         "get-stream": {
@@ -11244,7 +11385,7 @@
           }
         },
         "invert-kv": {
-          "version": "1.0.0",
+          "version": "2.0.0",
           "bundled": true
         },
         "ip": {
@@ -11402,10 +11543,10 @@
           "bundled": true
         },
         "lcid": {
-          "version": "1.0.0",
+          "version": "2.0.0",
           "bundled": true,
           "requires": {
-            "invert-kv": "^1.0.0"
+            "invert-kv": "^2.0.0"
           }
         },
         "libcipm": {
@@ -11564,7 +11705,7 @@
           }
         },
         "libnpx": {
-          "version": "10.2.0",
+          "version": "10.2.2",
           "bundled": true,
           "requires": {
             "dotenv": "^5.0.1",
@@ -11694,15 +11835,30 @@
             "ssri": "^6.0.0"
           }
         },
+        "map-age-cleaner": {
+          "version": "0.1.3",
+          "bundled": true,
+          "requires": {
+            "p-defer": "^1.0.0"
+          }
+        },
         "meant": {
           "version": "1.0.1",
           "bundled": true
         },
         "mem": {
-          "version": "1.1.0",
+          "version": "4.3.0",
           "bundled": true,
           "requires": {
-            "mimic-fn": "^1.0.0"
+            "map-age-cleaner": "^0.1.1",
+            "mimic-fn": "^2.0.0",
+            "p-is-promise": "^2.0.0"
+          },
+          "dependencies": {
+            "mimic-fn": {
+              "version": "2.1.0",
+              "bundled": true
+            }
           }
         },
         "mime-db": {
@@ -11716,10 +11872,6 @@
             "mime-db": "~1.35.0"
           }
         },
-        "mimic-fn": {
-          "version": "1.2.0",
-          "bundled": true
-        },
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
@@ -11797,6 +11949,10 @@
           "version": "0.0.7",
           "bundled": true
         },
+        "nice-try": {
+          "version": "1.0.5",
+          "bundled": true
+        },
         "node-fetch-npm": {
           "version": "2.0.2",
           "bundled": true,
@@ -11807,33 +11963,20 @@
           }
         },
         "node-gyp": {
-          "version": "5.0.5",
+          "version": "5.0.7",
           "bundled": true,
           "requires": {
-            "env-paths": "^1.0.0",
-            "glob": "^7.0.3",
-            "graceful-fs": "^4.1.2",
-            "mkdirp": "^0.5.0",
-            "nopt": "2 || 3",
-            "npmlog": "0 || 1 || 2 || 3 || 4",
-            "request": "^2.87.0",
-            "rimraf": "2",
-            "semver": "~5.3.0",
+            "env-paths": "^2.2.0",
+            "glob": "^7.1.4",
+            "graceful-fs": "^4.2.2",
+            "mkdirp": "^0.5.1",
+            "nopt": "^4.0.1",
+            "npmlog": "^4.1.2",
+            "request": "^2.88.0",
+            "rimraf": "^2.6.3",
+            "semver": "^5.7.1",
             "tar": "^4.4.12",
-            "which": "1"
-          },
-          "dependencies": {
-            "nopt": {
-              "version": "3.0.6",
-              "bundled": true,
-              "requires": {
-                "abbrev": "1"
-              }
-            },
-            "semver": {
-              "version": "5.3.0",
-              "bundled": true
-            }
+            "which": "^1.3.1"
           }
         },
         "nopt": {
@@ -12027,12 +12170,38 @@
           "bundled": true
         },
         "os-locale": {
-          "version": "2.1.0",
+          "version": "3.1.0",
           "bundled": true,
           "requires": {
-            "execa": "^0.7.0",
-            "lcid": "^1.0.0",
-            "mem": "^1.1.0"
+            "execa": "^1.0.0",
+            "lcid": "^2.0.0",
+            "mem": "^4.0.0"
+          },
+          "dependencies": {
+            "cross-spawn": {
+              "version": "6.0.5",
+              "bundled": true,
+              "requires": {
+                "nice-try": "^1.0.4",
+                "path-key": "^2.0.1",
+                "semver": "^5.5.0",
+                "shebang-command": "^1.2.0",
+                "which": "^1.2.9"
+              }
+            },
+            "execa": {
+              "version": "1.0.0",
+              "bundled": true,
+              "requires": {
+                "cross-spawn": "^6.0.0",
+                "get-stream": "^4.0.0",
+                "is-stream": "^1.1.0",
+                "npm-run-path": "^2.0.0",
+                "p-finally": "^1.0.0",
+                "signal-exit": "^3.0.0",
+                "strip-eof": "^1.0.0"
+              }
+            }
           }
         },
         "os-tmpdir": {
@@ -12047,10 +12216,18 @@
             "os-tmpdir": "^1.0.0"
           }
         },
+        "p-defer": {
+          "version": "1.0.0",
+          "bundled": true
+        },
         "p-finally": {
           "version": "1.0.0",
           "bundled": true
         },
+        "p-is-promise": {
+          "version": "2.1.0",
+          "bundled": true
+        },
         "p-limit": {
           "version": "1.2.0",
           "bundled": true,
@@ -13025,14 +13202,14 @@
           "bundled": true
         },
         "yargs": {
-          "version": "11.0.0",
+          "version": "11.1.1",
           "bundled": true,
           "requires": {
             "cliui": "^4.0.0",
             "decamelize": "^1.1.1",
             "find-up": "^2.1.0",
             "get-caller-file": "^1.0.1",
-            "os-locale": "^2.0.0",
+            "os-locale": "^3.1.0",
             "require-directory": "^2.1.1",
             "require-main-filename": "^1.0.1",
             "set-blocking": "^2.0.0",
@@ -15288,6 +15465,14 @@
             "v8-compile-cache": "^2.0.3"
           }
         },
+        "eslint-plugin-flowtype": {
+          "version": "3.13.0",
+          "resolved": "https://registry.npmjs.org/eslint-plugin-flowtype/-/eslint-plugin-flowtype-3.13.0.tgz",
+          "integrity": "sha512-bhewp36P+t7cEV0b6OdmoRWJCBYRiHFlqPZAG1oS3SF+Y0LQkeDvFSM4oxoxvczD1OdONCXMlJfQFiWLcV9urw==",
+          "requires": {
+            "lodash": "^4.17.15"
+          }
+        },
         "eslint-plugin-import": {
           "version": "2.18.2",
           "resolved": "https://registry.npmjs.org/eslint-plugin-import/-/eslint-plugin-import-2.18.2.tgz",
@@ -16587,6 +16772,25 @@
       "resolved": "https://registry.npmjs.org/slash/-/slash-2.0.0.tgz",
       "integrity": "sha512-ZYKh3Wh2z1PpEXWr0MpSBZ0V6mZHAQfYevttO11c51CaWjGTaadiKZ+wVt1PbMlDV5qhMFslpZCemhwOK7C89A=="
     },
+    "slice-ansi": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-2.1.0.tgz",
+      "integrity": "sha512-Qu+VC3EwYLldKa1fCxuuvULvSJOKEgk9pi8dZeCVK7TqBfUNTH4sFkk4joj8afVSfAYgJoSOetjx9QWOJ5mYoQ==",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "^3.2.0",
+        "astral-regex": "^1.0.0",
+        "is-fullwidth-code-point": "^2.0.0"
+      },
+      "dependencies": {
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        }
+      }
+    },
     "slick-carousel": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/slick-carousel/-/slick-carousel-1.8.1.tgz",
@@ -17256,6 +17460,37 @@
       "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
       "integrity": "sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw=="
     },
+    "table": {
+      "version": "5.4.6",
+      "resolved": "https://registry.npmjs.org/table/-/table-5.4.6.tgz",
+      "integrity": "sha512-wmEc8m4fjnob4gt5riFRtTu/6+4rSe12TpAELNSqHMfF3IqnA+CH37USM6/YR3qRZv7e56kAEAtd6nKZaxe0Ug==",
+      "dev": true,
+      "requires": {
+        "ajv": "^6.10.2",
+        "lodash": "^4.17.14",
+        "slice-ansi": "^2.1.0",
+        "string-width": "^3.0.0"
+      },
+      "dependencies": {
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        }
+      }
+    },
     "tapable": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/tapable/-/tapable-1.1.3.tgz",
diff --git a/package.json b/package.json
index f5c7a275309229cd8c013f8ec2af30ead518426f..3d26b6d609adb29c3559eb3d0ebe1daf04dbe47b 100644
--- a/package.json
+++ b/package.json
@@ -5,9 +5,10 @@
   "private": true,
   "dependencies": {
     "axios": "^0.19.2",
+    "eslint-plugin-flowtype": "^4.6.0",
     "http-proxy-middleware": "^0.20.0",
     "moment": "^2.24.0",
-    "npm": "^6.13.6",
+    "npm": "^6.13.7",
     "prop-types": "^15.7.2",
     "react": "^16.12.0",
     "react-datepicker": "^2.11.0",
diff --git a/src/components/Header.js b/src/components/Header.js
index b609a5a69979d45e9c3b3dbc5d49b8901af444c7..5cd5c209180b91ab9f794deaf01d6f9f8905e3b9 100644
--- a/src/components/Header.js
+++ b/src/components/Header.js
@@ -69,7 +69,7 @@ class Header extends Component {
     };
   }
   // Fetch the userData-s
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getUserData();
   }
 
@@ -106,7 +106,7 @@ class Header extends Component {
                         <Icon name='angle down' size='large' />
                       </Menu.Item>
                     }
-                    position='center'
+                    position='top center'
                   >
                     <Menu inverted secondary size='large'>
                       {menuItems.map((item, i) =>
@@ -141,7 +141,7 @@ class Header extends Component {
         <Responsive maxWidth={599}>
           <Segment inverted textAlign='center' vertical>
             <Container>
-              <Menu inverted secondary size='big'>
+              <Menu inverted secondary size='large'>
                 {/* kszk logo + home link */}
                 <Menu.Item as={Link} to={menuItems[0].to}>
                   {menuItems[0].prefix}{menuItems[0].text}
@@ -153,12 +153,13 @@ class Header extends Component {
                       <Icon name='bars' size='large' />
                     </Menu.Item>
                   }
-                  position='center'
+                  position='top center'
                   open={this.state.isOpen}
                   onOpen={this.handleOpen}
+                  on='click'
                   size='huge'
                 >
-                  <Menu vertical inverted secondary size='big'>
+                  <Menu vertical inverted secondary size='large'>
                     {menuItems.map((item, i) =>
                       ((this.props.user.permission >= item.permissionLevel 
                         ||item.permissionLevel === 0) && i>0?
diff --git a/src/components/forms/AddSolutionForm.js b/src/components/forms/AddSolutionForm.js
index 8b73573e5dd996ce15e765769356ae1891c939c8..3f4587b39e053b3f1b740248041bac8a46afed87 100644
--- a/src/components/forms/AddSolutionForm.js
+++ b/src/components/forms/AddSolutionForm.js
@@ -4,7 +4,11 @@ import { connect } from 'react-redux';
 import { addSolution, writeSolution, writeSolutionFile, addDocument, clearWrite } from '../../actions/homework';
 import './Forms.css';
 import ConfirmModal from '../forms/ConfirmModal';
-import { emptyMessage } from '../pages/Homework';
+import { customMessage } from '../pages/Homework';
+import {
+  getDocuments,
+  getSolutions,
+} from '../../actions/homework';
 
 const allowedFileTypes = [
   'image/jpeg',
@@ -23,10 +27,12 @@ class AddSolutionForm extends Component {
     };
   }
 
+
   render() {
     const {
-      name, description, file,
-    } = this.props.newSolution;
+      name, description, file
+    } = this.props.newSolution
+
     const task = this.props.taskid;
     const corrected = false;
     const accepted = false;
@@ -34,6 +40,17 @@ class AddSolutionForm extends Component {
     const note = '';
     const disabledText = 'A határidő lejárt, további beadás nem lehetséges.';
 
+    // const {
+    //   studentFullName, studentId, taskTitle, taskSolutions,
+    // } = this.props;
+    // const taskSolutionsProfile =
+    // taskSolutions.filter(solution => solution.created_by === studentId);
+    // const relevantSolution = taskSolutionsProfile.slice(-1)[0];
+    // const relevantDocuments = this.props.homeworks.documents.filter(document =>
+    //   document.solution === relevantSolution.id).filter(document =>
+    //   document.uploaded_by_name === studentFullName);
+    // const relevantDocument = relevantDocuments.slice(-1)[0];
+
     return (
       <Modal
         open={this.state.showModal}
@@ -42,7 +59,9 @@ class AddSolutionForm extends Component {
         trigger={
           <button
             id='task'
-            onClick={() => { this.setState({ showModal: true }); }}
+            onClick={() => { 
+              this.setState({ showModal: true });
+            }}
           >
             <Icon name='external' />
             {this.props.tasktitle}
@@ -55,10 +74,10 @@ class AddSolutionForm extends Component {
         <Modal.Content>
           <Modal.Description style={{ marginBottom: '2em' }}>
             <Header as='h5'>Feladat leĂ­rĂĄsa:</Header>
-            {sentences.map(s => (<p>{s}</p>))}
+            {sentences.map(s => (<p key={Math.random()}>{s}</p>))}
           </Modal.Description>
           {this.props.disabled ?
-            emptyMessage(disabledText, undefined, undefined, this.props.disabled) :
+            customMessage(disabledText, undefined, undefined, this.props.disabled) :
             <Form>
               <Form.Field
                 control={Input}
@@ -154,5 +173,7 @@ export default connect(mapStateToProps, {
   writeSolution,
   writeSolutionFile,
   addDocument,
+  getDocuments,
   clearWrite,
+  getSolutions,
 })(AddSolutionForm);
diff --git a/src/components/forms/SolutionDetailsForm.js b/src/components/forms/SolutionDetailsForm.js
index 8e2279ccad1d0399b64a6443003864f92f077883..d3ecf235902d945f9951a8a7d9e5aa251f85bbaa 100644
--- a/src/components/forms/SolutionDetailsForm.js
+++ b/src/components/forms/SolutionDetailsForm.js
@@ -2,7 +2,7 @@ import React, { Component } from 'react';
 import { Modal, Button, Header, Icon, Divider } from 'semantic-ui-react';
 import { connect } from 'react-redux';
 import CorrectSolutionForm from './CorrectSolutionForm';
-import { emptyMessage } from '../pages/Homework';
+import { customMessage } from '../pages/Homework';
 import './Forms.css';
 import {
   getSolutions,
@@ -43,7 +43,7 @@ class SolutionDetailsForm extends Component {
       }
     });
 
-    const emptyStudentText = 'Nincs ilyen képződő jelenleg.';
+    const noStudentText = 'Nincs ilyen képződő jelenleg.';
 
     return (
       <Modal
@@ -73,7 +73,7 @@ class SolutionDetailsForm extends Component {
           <Divider />
           <Header as='h3'>Nem ĂŠrkezett mĂŠg megoldĂĄs:</Header>
           {noSubmitStudents.length === 0 ?
-              emptyMessage(emptyStudentText) :
+              customMessage(noStudentText) :
               noSubmitStudents.map(student => (
                 <Button key={Math.random()} color='blue' style={{ marginRight: '1.5em', marginTop: '1.5em' }}>{student.full_name}</Button>
               ))
@@ -81,7 +81,7 @@ class SolutionDetailsForm extends Component {
           <Divider />
           <Header as='h3'>JavĂ­tĂĄsra vĂĄr (A nĂŠvre kattintva kijavĂ­thatĂł a megoldĂĄs):</Header>
           {waitForCorrectionStudents.length === 0 ?
-            emptyMessage(emptyStudentText) :
+            customMessage(noStudentText) :
             waitForCorrectionStudents.map(student => (
               <CorrectSolutionForm
                 key={Math.random()}
@@ -97,7 +97,7 @@ class SolutionDetailsForm extends Component {
           <Divider />
           <Header as='h3'>A megoldĂĄs nem elfogadhatĂł (A nĂŠvre kattintva mĂłdosĂ­thatĂł a javĂ­tĂĄs):</Header>
           {noAcceptStudents.length === 0 ?
-            emptyMessage(emptyStudentText) :
+            customMessage(noStudentText) :
             noAcceptStudents.map(student => (
               <CorrectSolutionForm
                 key={Math.random()}
@@ -113,7 +113,7 @@ class SolutionDetailsForm extends Component {
           <Divider />
           <Header as='h3'>Elfogadva (A nĂŠvre kattintva mĂłdosĂ­thatĂł a javĂ­tĂĄs):</Header>
           {acceptedStudents.length === 0 ?
-            emptyMessage(emptyStudentText) :
+            customMessage(noStudentText) :
             acceptedStudents.map(student => (
               <CorrectSolutionForm
                 key={Math.random()}
diff --git a/src/components/pages/ApplicantProfile.js b/src/components/pages/ApplicantProfile.js
index 535617c75f03d53c51b485bdf0578051c346a6df..913f609569416770827f76abbd0e99aa04c22d88 100644
--- a/src/components/pages/ApplicantProfile.js
+++ b/src/components/pages/ApplicantProfile.js
@@ -5,7 +5,7 @@ import { getSelectedProfile, setStatus } from '../../actions/statistics';
 import ConfirmModal from '../forms/ConfirmModal';
 
 class ApplicantProfile extends Component {
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getSelectedProfile(this.props.match.params.id);
   }
 
@@ -13,7 +13,7 @@ class ApplicantProfile extends Component {
     const { id, signed, role, full_name, nick, motivation_about, motivation_exercise, motivation_profession }
     = this.props.selectedProfile;
     return (
-      <Container style={{ padding: '60px' }}>
+      <Container style={{ paddingTop: '3em', paddingBottom: '6em' }}>
         <Item>
           <Item.Content>
             <Container textAlign='center'>
@@ -21,7 +21,7 @@ class ApplicantProfile extends Component {
               <Item.Meta>{nick}</Item.Meta>
             </Container>
             <Item.Description>
-              <Container textAlign='justified' style={{ padding: '30px' }}>
+              <Container textAlign='justified' style={{ padding: '1em' }}>
                 <Header as='h3'>MagamrĂłl, eddigi tevĂŠkenysĂŠgem:</Header>
                 <p>{motivation_about}</p>
                 <Header as='h3'>Szakmai motivĂĄciĂł:</Header>
@@ -29,7 +29,7 @@ class ApplicantProfile extends Component {
                 <Header as='h3'>Feladatok megoldĂĄsa:</Header>
                 <p>{motivation_exercise}</p>
               </Container>
-              <Container textAlign='center' style={{ padding: '20px' }}>
+              <Container textAlign='center' style={{ padding: '1em' }}>
                 <Header as='h3'>StĂĄtusz:</Header>
                 { signed ?
                   <div>
@@ -63,18 +63,18 @@ class ApplicantProfile extends Component {
         </Item>
         { signed && role !== 'Staff' ?
           <Container textAlign='center'>
-            <ConfirmModal
+            <ConfirmModal 
               button={
-                <Button
+                <Button 
                   color='green'
                 >JelentkezĂŠs elfogadĂĄsa
                 </Button>}
               text='elfogadod a jelentkezĂŠst'
               onAccept={() => this.props.setStatus(id, 'Student')}
             />
-            <ConfirmModal
+            <ConfirmModal 
               button={
-                <Button
+                <Button 
                   color='red'
                 >JelentkezĂŠs elutasĂ­tĂĄsa
                 </Button>}
diff --git a/src/components/pages/Applications.js b/src/components/pages/Applications.js
index 50f0133a5d33f332284e5bb3b5bd0000631b6142..93e0b974f6a2acd5d76d043bd6f468cb7b35a069 100644
--- a/src/components/pages/Applications.js
+++ b/src/components/pages/Applications.js
@@ -6,7 +6,7 @@ import { getProfiles, setStatus } from '../../actions/statistics';
 import ConfirmModal from '../forms/ConfirmModal';
 
 class Applications extends Component {
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getProfiles();
   }
 
diff --git a/src/components/pages/EventDetail.js b/src/components/pages/EventDetail.js
index 05381b31aed3cfd6fb67773c9e1597e17e1aef2f..50e87621e44f549b25c1ea2cb9fac2c1478a3745 100644
--- a/src/components/pages/EventDetail.js
+++ b/src/components/pages/EventDetail.js
@@ -29,7 +29,7 @@ class EventDetail extends Component {
     };
   }
 
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getEventById(this.props.match.params.id);
     this.props.getTrainees();
     this.props.getNotesByEvent(this.props.match.params.id);
diff --git a/src/components/pages/Events.js b/src/components/pages/Events.js
index 923def7560120af68fe04614aa553fb22c82abce..75cc7941bf20432363865e6814ef5489e1d61c94 100644
--- a/src/components/pages/Events.js
+++ b/src/components/pages/Events.js
@@ -7,7 +7,7 @@ import { getStaffEvents, deleteEvent } from '../../actions/statistics';
 import AddEventForm from '../forms/AddEventForm';
 
 class Events extends Component {
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getStaffEvents();
   }
 
diff --git a/src/components/pages/Groups.js b/src/components/pages/Groups.js
index 92122735a05517b66ea7ebeb3c6e4fba1175bd9a..f1251d1f2f699cfde9abd34020869667e59f62ac 100644
--- a/src/components/pages/Groups.js
+++ b/src/components/pages/Groups.js
@@ -8,7 +8,7 @@ import { getGroups } from '../../actions/groups';
 
 
 class Groups extends Component {
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getGroups()
   }
 
diff --git a/src/components/pages/Homework.js b/src/components/pages/Homework.js
index 2d85f283b3b72b35cb2217ec9a8069fe6ab9dbc5..6acd11ec415bf68ab33b4daa9071dda2945036df 100644
--- a/src/components/pages/Homework.js
+++ b/src/components/pages/Homework.js
@@ -25,6 +25,9 @@ import EditTaskForm from '../forms/EditTaskForm';
 import InfoModal from '../forms/InfoModal';
 import ConfirmModal from '../forms/ConfirmModal';
 
+// Display type for the Table Semantic UI component
+// {icon} {text} - Displayed for the student for each Task
+// {rowstyle} - Table row style (red text, yellow bg, ...)
 const displayTypes = {
   can_submit: {
     text: 'BeadhatĂł',
@@ -53,7 +56,7 @@ const displayTypes = {
   },
 };
 
-export const emptyMessage = (header, text, marginBottom, warning) => (
+export const customMessage = (header, text, marginBottom, warning) => (
   <Message
     style={{ marginBottom }}
     icon={warning ? 'warning' : 'info'}
@@ -71,11 +74,11 @@ class Homework extends Component {
     this.props.getSolutions(this.props.user.id);
   }
 
+  // Returns a table style for the given task
   getTaskDisplayStyle(task) {
-    const taskSolutions = this.props.homeworks.solutions.filter(solution =>
-      solution.task === task.id)
-      .filter(solution =>
-        solution.created_by === this.props.user.id);
+    const taskSolutions = this.props.homeworks.solutions.filter(solution => 
+      solution.task === task.id).filter(solution =>
+      solution.created_by === this.props.user.id);
 
     if (taskSolutions.length === 0) {
       if (moment().isBefore(task.deadline)) {
@@ -96,15 +99,19 @@ class Homework extends Component {
     return 'accepted';
   }
 
+  // Returns table rows for the tasks
+  // given parameters separates the active/inactive tasks and normal/staff users
   renderTaskList(active, staff) {
     const { user, homeworks } = this.props;
     const profileSolutions = homeworks.solutions.filter(solution =>
       solution.created_by === user.id);
 
+    // Normal user
     if (!staff) {
       return homeworks.tasks
         .filter(task => moment().isBefore(task.deadline) === active)
         .map(task => (
+          // Style
           <Table.Row
             key={task.id}
             warning={
@@ -117,6 +124,7 @@ class Homework extends Component {
             displayTypes[this.getTaskDisplayStyle(task)].rowstyle.negative
           }
           >
+            {/* Form component */}
             <Table.Cell>
               <AddSolutionForm
                 taskid={task.id}
@@ -126,9 +134,11 @@ class Homework extends Component {
                 disabled={moment().isAfter(task.deadline)}
               />
             </Table.Cell>
+            {/* Deadline Date */}
             <Table.Cell>
               {moment(task.deadline).format('YYYY. MM. DD. HH:mm')}
             </Table.Cell>
+            {/* Status (JavĂ­tĂĄsra vĂĄr, ...) */}
             <Table.Cell>
               <Icon name={displayTypes[this.getTaskDisplayStyle(task)].icon} />{' '}
               {displayTypes[this.getTaskDisplayStyle(task)].text}
@@ -156,6 +166,8 @@ class Homework extends Component {
         ));
     }
 
+    // Staff 
+
     const deleteButton = (
       <Button
         inverted
@@ -181,6 +193,7 @@ class Homework extends Component {
           displayTypes[this.getTaskDisplayStyle(task)].rowstyle.negative
         }
         >
+          {/* Form */}
           <Table.Cell>
             <SolutionDetailsForm
               taskid={task.id}
@@ -188,9 +201,11 @@ class Homework extends Component {
               taskdesc={task.text}
             />
           </Table.Cell>
+          {/* Deadline Date */}
           <Table.Cell>
             {moment(task.deadline).format('YYYY. MM. DD. HH:mm')}
           </Table.Cell>
+          {/* Admin buttons */}
           <Table.Cell>
             <EditTaskForm onClick={() => this.props.setSelectedTask(task)} />
             <ConfirmModal
@@ -203,6 +218,7 @@ class Homework extends Component {
       ));
   }
 
+  // Active/Inactive tasks table
   renderHomeworksTable(active, staff) {
     let tableColor = 'green';
     let marginBottom = '0em';
@@ -258,22 +274,22 @@ class Homework extends Component {
     );
   }
 
+  // Headers and stuff around the Tables
   renderHomeworks(active, staff) {
-    let empty = false;
-    let emptyText = 'Jelenleg nincs egyetlen beadhatĂł feladat sem. ';
+    let noTask = false;
+    let noTaskText = 'Jelenleg nincs egyetlen beadhatĂł feladat sem. ';
     let marginBottom = '0em';
-    const emptyHeaderText = 'Nincs feladat.';
+    const noTaskHeaderText = 'Nincs feladat.';
     let headerText = 'AktĂ­v feladatok';
 
     if (staff) {
       headerText = 'AktĂ­v feladatok kijavĂ­tĂĄsa, mĂłdosĂ­tĂĄsa vagy tĂśrlĂŠse';
     }
 
-    if (
-      this.props.homeworks.tasks.filter(task =>
-        moment().isBefore(task.deadline) === active).length === 0
+    if (this.props.homeworks.tasks.filter(task =>
+          moment().isBefore(task.deadline) === active).length === 0
     ) {
-      empty = true;
+      noTask = true;
     }
 
     if (!active) {
@@ -282,7 +298,7 @@ class Homework extends Component {
       } else {
         headerText = 'LejĂĄrt hatĂĄridejĹą feladatok';
       }
-      emptyText = 'Jelenleg nincs egyetlen lejĂĄrt hatĂĄridejĹą feladat sem.';
+      noTaskText = 'Jelenleg nincs egyetlen lejĂĄrt hatĂĄridejĹą feladat sem.';
       marginBottom = '3em';
     }
 
@@ -300,9 +316,11 @@ class Homework extends Component {
                 marginTop: '0.5em',
               }}
           />
-          {empty
-            ? emptyMessage(emptyHeaderText, emptyText, marginBottom, false)
-            : this.renderHomeworksTable(active, staff)}
+          {noTask ? 
+            customMessage(noTaskHeaderText, noTaskText, marginBottom, false)
+            : 
+            this.renderHomeworksTable(active, staff)
+          }
         </Container>
       </Segment>
     );
@@ -323,9 +341,7 @@ class Homework extends Component {
         <div>
           <Segment style={{ padding: '0 0 2em 0' }} vertical basic>
             <Container>
-              <Header
-                as='h1'
-                dividing
+              <Header dividing as='h1'
                 content='Új házi feladat létrehozása'
                 style={{
                       fontSize: '2em',
@@ -344,7 +360,7 @@ class Homework extends Component {
         </div>
       );
     }
-    return null;
+    return null; // ¯\_(ツ)_/¯
   }
 }
 
diff --git a/src/components/pages/News.js b/src/components/pages/News.js
index 525c8273110f11a3179bb96ef16e17738be2f8e7..11804cfefd75b4a87dfa1db79c3d680de4509a96 100644
--- a/src/components/pages/News.js
+++ b/src/components/pages/News.js
@@ -11,7 +11,7 @@ import { getNews, deleteNews, setSelectedNews } from '../../actions/news';
 import './News.css';
 
 class News extends Component {
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getNews();
   }
 
@@ -23,7 +23,7 @@ class News extends Component {
             style={{ fontSize: '2em', width: '100%' }}
           >
             <Grid>
-              <Grid.Column floated='center' width={12}>
+              <Grid.Column width={12}>
                 {item.title}
               </Grid.Column>
               { this.props.user.role === 'Staff' ?
@@ -70,7 +70,7 @@ class News extends Component {
 
   renderMultiLine(text) {
     const strings = text.split('\n');
-    return strings.map(string => <p>{string}</p>);
+    return strings.map(string => <p key={Math.random()}>{string}</p>);
   }
 
   render() {
diff --git a/src/components/pages/Profile.js b/src/components/pages/Profile.js
index fc6336dcde43ce0a0ce62c1feed37ae91492d4a1..9fb9e0251166b02e7c49fdb72ed8170e85fd1323 100644
--- a/src/components/pages/Profile.js
+++ b/src/components/pages/Profile.js
@@ -14,7 +14,7 @@ const options = [
 ];
 
 class Profile extends Component {
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getDeadline()
     if (!this.props.id) {
       this.props.history.push('/home');
@@ -104,7 +104,7 @@ class Profile extends Component {
                   nem titkolt cĂŠlunk ezzel a lelkesedĂŠs felmĂŠrĂŠse.
                   A vĂĄlaszokat a kĂŠrdĂŠsek alatti szĂśvegdobozba vĂĄrjuk.
                 </b>
-                <ol>
+                <ul>
                   <li>
                   SzeretnĂŠd kedvenc tantĂĄrgyad vik.wiki oldalĂĄt elĂŠrni,
                   de szomorĂşan lĂĄtod, hogy az oldal nem jĂśn be.
@@ -134,12 +134,12 @@ class Profile extends Component {
                   (használd az előző feladatban kapott adatokat).
                   BelĂŠpĂŠs utĂĄn keresd meg a feladat megoldĂĄsĂĄt!
                   </li>
-                </ol>
+                </ul>
               </div>
             }
             value={motivationExercise}
           /> :
-            <HiddenForm 
+            <HiddenForm
               fontWeight='normal'
               label={
                 <div>
@@ -148,7 +148,7 @@ class Profile extends Component {
                     nem titkolt cĂŠlunk ezzel a lelkesedĂŠs felmĂŠrĂŠse.
                     A vĂĄlaszokat a kĂŠrdĂŠsek alatti szĂśvegdobozba vĂĄrjuk.
                   </b>
-                  <ol>
+                  <ul>
                     <li>
                     SzeretnĂŠd kedvenc tantĂĄrgyad vik.wiki oldalĂĄt elĂŠrni,
                     de szomorĂşan lĂĄtod, hogy az oldal nem jĂśn be.
@@ -157,7 +157,6 @@ class Profile extends Component {
                     Csodálkozva látod, hogy a böngésző címsorába írva eléred a kiszolgáló webszervert.
                     Mi lehet a baj?
                     </li>
-                    <br />
                     <li>
                     Két előadás közti szünetben úgy döntesz,
                     hogy laptopoddal az index.hu tech cikkeit fogod gĂśrgetni.
@@ -167,18 +166,16 @@ class Profile extends Component {
                     Ugyanakkor a Facebook, a Gmail, a YouTube, de mĂŠg az egyetemi
                     oldalak tĂśbbsĂŠge is mĹąkĂśdik. Szerinted mi lehet a hiba oka?
                     </li>
-                    <br />
                     <li>
                     Találsz egy értelmetlen szöveget egy honlapon (például: <a href='http://kszkepzes18.sch.bme.hu/zebra.html'>http://kszkepzes18.sch.bme.hu/zebra.html</a>), de feltűnik, hogy két egyenlőségjellel fejeződik be. Nyomozz, s a végeredményt (amit találtál) írd ide!
                     </li>
-                    <br />
                     <li>
                     A <b>kszkepzes18.sch.bme.hu</b> címen elérhető gépen
                     fut egy szolgĂĄltatĂĄs az alapĂŠrtelmezett <b>5432</b> porton
                     (használd az előző feladatban kapott adatokat).
                     BelĂŠpĂŠs utĂĄn keresd meg a feladat megoldĂĄsĂĄt!
                     </li>
-                  </ol>
+                  </ul>
                 </div>
               }
               value={motivationExercise} />
diff --git a/src/components/pages/Schedule.js b/src/components/pages/Schedule.js
index 03f019c43ee6b4106eba35375a869d14fc8b8bcd..e8b1c9cf6e50546bcdb78eaa06c9dcee834a0f3c 100644
--- a/src/components/pages/Schedule.js
+++ b/src/components/pages/Schedule.js
@@ -8,7 +8,7 @@ import { getStudentEvents } from '../../actions/statistics';
 class Schedule extends Component {
   state = { activeIndex: 0 }
 
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
       this.props.getStudentEvents();
   }
 
@@ -25,7 +25,7 @@ class Schedule extends Component {
 
     const events = this.props.events;
     const panels = events.map(event => (
-      <Accordion>
+      <Accordion key={Math.random()}>
         <Accordion.Title
           active={activeIndex === event.id}
           index={event.id}
@@ -63,10 +63,7 @@ class Schedule extends Component {
                 marginTop: '0.5em',
               }}
           />
-          <Accordion fluid styled
-            defaultActiveIndex={-1}
-            panels={panels}
-          >
+          <Accordion fluid styled>
             {panels}
           </Accordion>
           <Header
diff --git a/src/components/pages/Trainees.js b/src/components/pages/Trainees.js
index 99c0575bdae12977402ab0719301faaabe8497a9..7010e377bf0ed1efeb5b177d6499b9de48ca9ed3 100644
--- a/src/components/pages/Trainees.js
+++ b/src/components/pages/Trainees.js
@@ -4,7 +4,7 @@ import { connect } from 'react-redux';
 import { getTrainees, getStaffEvents } from '../../actions/statistics';
 
 class Trainees extends Component {
-  componentWillMount() {
+  UNSAFE_componentWillMount() {
     this.props.getTrainees();
     this.props.getStaffEvents();
   }
diff --git a/src/setupProxy.js b/src/setupProxy.js
index a824924f5ae9e0bba61eeea4d341b81fa585e007..539efe34da9734a7f4f023b167e654af53ecc100 100644
--- a/src/setupProxy.js
+++ b/src/setupProxy.js
@@ -1,5 +1,6 @@
 const proxy = require('http-proxy-middleware');
 
 module.exports = function(app) {
-  app.use(proxy('/api', { target: 'http://127.0.0.1:8000/' }));
+  app.use(proxy('/api', { target: 'http://127.0.0.1:8000/' }))
+  app.use(proxy('/media', { target: 'http://127.0.0.1:8000/' }))
 };