Changed background color
Merge branch 'master' of https://github.com/asoucar/Digits

Conflicts:
	Digits/Digits.xcodeproj/project.xcworkspace/xcuserdata/Ashley.xcuserdatad/UserInterfaceState.xcuserstate
Building big numbers
Merge branch 'master' of https://github.com/asoucar/Digits

Conflicts:
	Digits/Digits/BigNumber.m
Numbers are made of separate labels in a bigNumber view.
Need to add gesture recognition to each label.
Fix zero parsing into bigNumber.
Integrate bigNumber class with existing gesture collisions.