switched to spark_dart
Revert "switched to spark_dart"

This reverts commit b4744b51630160e288046f0439efb3f249105b88.
Merge branch 'master' of https://github.com/dart-lang/spark
Merge branch 'master' of https://github.com/dart-lang/spark
@TEST Setup timer to see if I could focus the button that way
@TEST - Setup dialog for "developer tools"
@TEST - Succeeded in focusing button
Revert "@TEST - Succeeded in focusing button"

This reverts commit 1a087bf28acdeec0dd045a22b92cbc84bf07d968.
Revert "@TEST - Setup dialog for "developer tools""

This reverts commit a464ee0bad9edbdaa89b617d9f6cb67751dcf500.
Revert "@TEST Setup timer to see if I could focus the button that way"

This reverts commit 35a3c55480bff0c82e9ff17148e187301b46ce29.
@TEST - setup timer for 1000ms
add capturing of uncaught exceptions to analytics; fix a regex issue w/ dart2js stack traces
rollback testing change
Animate when double-clicking on a folder to expand it (fixed #404)
Don't show a copy mouse icon when dropping is not allowed at this location
Merge pull request #406 from dinhviethoa/398-dont-show-plus-icon-when-dnd-not-allowed

Fixed mouse icon while dragging over items.
Merge pull request #405 from dinhviethoa/404-double-click-animation

Animate when double-clicking on a folder to expand it
Fixed duplicate items in menu + crash on Polymer UI launch
Merge pull request #408 from ussuri/fix-broken-uis

Fixed duplicate items in menu + crash on Polymer UI launch
trigger dialogs on enter in text fields