adding card files and html file
added card request
added card functionality
bug fixes
Fixed card classes and methods
added server operations
Fixed indentation.
Merge remote-tracking branch 'origin/master' into reskontr
Merge branch 'tzeoliver'

Conflicts:
	static/style.css
Create cards backfacing by default.
Arrange the deck in a stack.
Only the top card is draggable.
Can flip cards after taking from the deck.
Get initial state from the server.
Update card positions on the server.
Pop cards from the deck on the server.
Fixed move sync.
Fixed updating server state on pop.
Fixed backfacing state setting.
Scaled cards down 50%.