Don't use convinence functions then retain them: use alloc-init.
Use [[CALayer alloc] init] instead of [[CALayer layer] retain].
Merge branch 'master' into arc

Conflicts:
	Source/DOM classes/SVG-DOM/SVGGElement.m
	Source/DOM classes/SVG-DOM/SVGHelperUtilities.m
	Source/DOM classes/Unported or Partial DOM/SVGGroupElement.m
	Source/DOM classes/Unported or Partial DOM/SVGSVGElement.m
	Source/Exporters/CALayerExporter.m
	Source/Parsers/Parser Extensions/SVGKParserSVG.m