Changed version to v0.6
Added performance comparison project
Included performance test
Removed public modifier
Removed public modifier from Element
Stop using Element, use IElement instead
Reacted to API changes
Removed public modifier from Document, improved internal handling
Extended API (optional base URI)
Using IDocument instead of Document
Added the CSSConditionRule and CSSSupportRule IDL and implemented them
Added and implemented CSSKeyframeRule and CSSKeyframeRules IDL
Added files
Finished the rule type annotations
Added and implemented the CSSFontFaceRule IDL
Added the CSSFontFeatureValuesRule IDL
Added the CSSCounterStyleRule IDL
Added the CSSDocumentRule IDL
Implemented the CSSDocumentRule IDL
Added files