Port CSSPrimitiveValue to use CGFloats.
Make sure we have a string with a valid length for the color in the text.
Grammar fix.
Change the name of the default image string getter.
Remove SVGKit from the prefix header.
Alloc-init NSInputStreams in the SVGKSource subclasses.
Merge branch 'master' into arc

Conflicts:
	Source/DOM classes/Core DOM/CSSPrimitiveValue.m