CSS definitions first draft
Clean up and some reshuffling
Factored out common code into classes to cut down on size of generated code
BasicTests pass
All tests pass, doccomments have proper MDN attribution
A lot more doccomments and MDN citations, and made some attributes strongishly typed
Lots of cleanup
More cleanup
Updated readme lots
Updated readme more
Updated readme more, adding stringifying-assignment doc
Major cleanup; DataTypes.scala is almost done
Added more examlples
Added SvgTags, and additional import example, more Scalatags.Js tests