Making the OS X version use ARC on 64-bit, and iOS to use ARC as well.
Fixes needed to make ARC happy.
Pushing changes that I missed earlier.
Use better functions in iOS to get a CGImage.
Merge branch 'master' of https://github.com/MaddTheSane/SVGImageRep into XCode4

Conflicts:
	SVGImageRepiOS/SVGImageRepiOS.m