fix boot.js: still call initPolymer even if they are no polymer-elements
release 0.5.2+1 (bug fix in boot.js)
Refactoring our compiler: moving the css emitting code around a bit, remove
css-mangling option.
fixes for latest SDK
cleanup comments
update pubspec
A few extra fixes needed before publishing. ShadowDOMPolyfill tests still fail,
but everything else is looking better.
Remove abstract on PolymerElement. This also fixes https://code.google.com/p/dart/issues/detail?id=12254
remove unused files
fix event.dart