* Added trivial login/logout/register
* Auth methods for REST API.
- api/v1/auth/login
- api/v1/auth/logout
For basic auth only:
- api/v1/auth/register
- api/v1/auth/password/*
* Add info about auth for REST API into CHANGELOG.md
* Add pylintrc for codacy, updated pylint and its dependecies.
* Add token authorization, renamed cvat.js to cvat-core in all places.
* Implemented register method in cvat-core
* Added first_name and last_name to RegisterSerializer.
Nikita Manovich