Make the data setters for SVGKSource and its subclasses private.
Make the data setters for SVGKSource and its subclasses private.
More verbosity on SVGKSource's copy method.
Change the macro named svgCacheObject to CacheObjectCreateOnDemand.
Re-implement SVGKImageCache using just an NSMutableDictionary.
Merge branch 'master' into arc

Conflicts:
	Source/DOM classes/Unported or Partial DOM/SVGTextElement-iOS.m
	Source/SVGKImage+CacheManagement.m
	Source/SVGKSource.h
	Source/SVGKSource.m
	Source/Sources/SVGKSourceData.h
	Source/Sources/SVGKSourceData.m
	Source/Sources/SVGKSourceURL.h
	Source/Sources/SVGKSourceURL.m