Oops, CSS updates for Mastermind that I forgot to commit earlier.
Merge branch 'master' of https://github.com/smab/playhouse-web
Mastermind: improve guess input interface, fix some bugs

  * Improves the interface for inputting a guess.  The position to select a
    colour for is now slowly pulsating for the player that is supposed to
    provide the input.

  * Web server now keeps track of columns for both players individually, which
    makes a lot more sense: if a player times out two columns aren't "skipped
    over".  Instead, the player who didn't time out gets an extra guess.

  * Fixed a bug where game-over never triggered after the game board filled up.

  * Added some brief rules.
Merge branch 'master' of https://github.com/smab/playhouse-web

Conflicts:
	src/games/mastermind.py