Moved utility .js files to /utils. Added zeimyth.util.scalar functions
Changed up-sliding function to use zeimyth.util.scalar rather than goog.array functions
Added support for shifting tiles down. Refactored combination process into a common method
Added support for left and right. Now the game can be played
Added support for all tile colors. Refactored method definitions
zeimyth.Board.prototype.combineTiles is private
Added scoring
Added winning and losing conditions