Implemented TreeView
Merged
Cleaning
working on key handling
refactor spark_test.dart to lib/tests.dart
remove old comment
Fix css
Inject splitter
Fix horizontal spliview
Fix styles
merge to master; create lib/actions.dart
merge to master; add tests for key bindings
remove some todos
Fixed theme setting in the Polymer UI.
Merge pull request #199 from ussuri/fix-themes-in-polymer

Fixed theme setting in the Polymer UI.
add the ability to get token to resources and restore resources from those tokens
merge to master
whitespace change to kick the build
Merge pull request #194 from dart-lang/tests-refactor

Tests refactor
Control spliter margin in splitview