Merge pull request #7 from LizaHCarter/liza

Liza
Merge pull request #8 from LizaHCarter/liza

Liza
placed background image in the gameboard
baddie Z placement
sorted out issue with the ledges being different than master
changed platform color
fixed scoring
Merge pull request #9 from LizaHCarter/shruti

Shruti
background is complete
Merge pull request #10 from LizaHCarter/background

Background
added baddieZ
fixed kill Z file
Merge pull request #11 from LizaHCarter/shruti

fixed kill Z file
baddiesX added, problems with baddies dropping on top of each other
Merge pull request #12 from LizaHCarter/baddies

Baddies
fixing game won
Merge branch 'master' of https://github.com/LizaHCarter/roundup into shruti
baddies x and Z placement
start screen finished
Merge pull request #13 from LizaHCarter/menu

start screen finished