Change colors of Ace search results to improve visibility (also affect selection colors)
Follow-up to the previous commit
work on launching web apps
compile dart files for chrome apps
some renames
Merge remote-tracking branch 'upstream/master' into small-fixes-2

Conflicts:
	ide/app/spark_polymer.css
Remove no longer used CSS
Merge remote-tracking branch 'upstream/master' into small-fixes-2
Clearer error message
Clearer error message
merge master
Add support for private repos.
more work on private repos.
remove error message on private repo clone.
Default icon color for "next/prev match" icons in Search dialog
Tiny tweaks to 'About' dialog
Align dialogs closer to window's center
Zero top padding for button toolbar in dialog for more balanced look
Add option to not show closing X in dialogs
No closing X in 'About': unclear meaning on first run in presence of analytics opt-in