Fixed issue where resetting the game wouldn't properly reset the ball machine and so not all balls would be called
Merge pull request #28 from Mekire/master

If we're gonna do this...
Merge remote-tracking branch 'upstream/master' into PaulBingoBranch
Refactored setting of initial ball machine speed
Implemented control to show and set the number of cards in use
Added attribution for new songs
Change the number of cards in play when clicking
Remember card numbers when switching the number of cards in play
Alter card locations when changing the number of cards
Fixed issue with ball machine sometimes picking two balls at once
Made spritesheet for cards, added code to load individually to prepare.GFX
Make sound and flash squares when line is completed
Check if a line is really complete or not - if not then indicate this visually
Set highlight to be a bad colour when a bad bingo is called
Added missing graphic file
Moved loggable to components level
Moved loggable to components level
Moved bingo utils to components/common
Fixed corners on card spritesheet
Refactored proper event behaviour on common classes