Merge pull request #2 from KirillKayumov/front-end

Front end
Merge pull request #3 from KirillKayumov/front-end

Fix minification
Create game
Add new method to GamesController and change create method
Add comments, use class method in User
Add create method to TurnsController, change column names in DB
Add last method to TurnsCntroller
Merge remote-tracking branch 'origin/api' into front-end
Added login and registration page