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
Update README.md

typos
Remove spark-select

spark-select has run its course. It was an earlier attempt at widgets and is now replaced by spark-selector.
Right-click on a file will open the context menu (fixed #412)
Added new dialogs
cleanup for CL
Merge branch 'master' of https://github.com/dart-lang/spark into new_dialogs
more cleanup