Finished and added HTMLMapElement
Removed ToText() method (not accessed from the outside)
Outsourced ToHtml()
Using other ways to HTMLize the content
Removed dependency of Attr to Element
Comparing ticks for fastest
Changed OnChildrenChanged
Changed comments
Added another GetComputedStyle test
Extended the FilterSettings, fixed TreeWalker
Added basic tests for the TreeWalker
Added Traversal 2.0 to the features list
Improved the NodeIterator and generalized the CollectionExtensions
Added NodeIterator unit tests and improved TreeWalker tests