added AI
Merge remote-tracking branch 'origin/master'
Added background assets - Reed and Dan
Merge pull request #14 from dekka/master

Added background assets - Reed and Dan
refactor
Merge remote-tracking branch 'upstream/master'
new murky image
centered murky image on screen
Merge pull request #15 from candyforchris/master

new centered murky image
correct initCell methods
starting point for AI and Player cells
Setup phage effect emmiters.