Merge branch 'master' into homework

.gitlab-ci.yml

.travis.yml

README.md

src/account/__init__.py

src/account/admin.py

src/account/apps.py

src/account/migrations/0001_initial.py

src/account/migrations/0002_auto_20171114_2144.py

src/account/migrations/0003_profile_nick.py

src/account/migrations/0004_profile_signed.py

src/account/migrations/0005_auto_20171223_1455.py

src/account/migrations/0006_auto_20180123_1713.py

src/account/migrations/0007_auto_20180123_1723.py

src/account/migrations/0008_auto_20180124_1821.py

src/account/migrations/0009_profile_motivation.py

src/account/migrations/0010_auto_20180124_1929.py

src/account/migrations/__init__.py

src/account/models.py

src/account/serializers.py

src/account/tests.py