initial work for dart2js integration
Merge branch 'sdk' into dart2js
got hello world compiling
merge w/ master
Merge branch 'master' into dart2js
adjust to changed API
Merge pull request #46 from ussuri/ui-in-polymer

Switched buttons to polymer version
Add zlib
Add doc to zlib.dart
minor doc fix.
Move file_util out of git.js
move underscore-min.js and objects module out.

Move out third-party library underscore-min.js : Dart has native support
of underscore.

Move out objects module.
improve failure message for grind.dart
Update README.md

added description about defining DART_SDK env variable
pegging the version of chrome_gen that we use
Merge pull request #49 from dart-lang/refactor_file_util

Move file_util out of git.js
Merge pull request #52 from dart-lang/gen-pubspec

pegging the version of chrome_gen that we use
Merge pull request #51 from dart-lang/script-message

improve failure message for grind.dart
Merge master branch
Merge pull request #50 from dart-lang/move_underscore.js

move underscore-min.js and objects module out.