refactor spark_test.dart to lib/tests.dart
remove old comment
Fixed theme setting in the Polymer UI.
Merge pull request #199 from ussuri/fix-themes-in-polymer

Fixed theme setting in the Polymer UI.
merge to master
whitespace change to kick the build
Merge pull request #194 from dart-lang/tests-refactor

Tests refactor
Merge branch 'master' into workspace-tweak