Garpix-user

- Localization error fixed
- Registration error fixed
- Delete user error fixed

- Log in error fixed

- Russian localization updated
- Restore password bugs fixed
- UserSession bugs fixed
- Registration bugs fixed
- Method `set_user_session` added to `User` model (see `Readme.md`)

- Russian localization added
- `change_password` endpoint added
- Restore password logic updated

- Tokens related names updated

- Release on pypi.org.