Fixed commit functionality.
Removed first use of complete.
Removed uses of complete.
Changed _findPackedObject to run in sync, without futures.
Replaced completers with future returns.
Fix datetime parsing --> stores datetime in s, need to retrieve into ms.
Fixed sync order of operations for walkFiles. Now correctly executes readBytes --> writeRawObject --> treeEntries.add in order.
Initial fixes for problem.
Added spinner css to polymer spark
Add git branching util functions.
Fixed commit function: form of commit object, parsing of commit blobs, etc
restore new file/folder context menu options
add tooltips to the icon buttons
Merge pull request #622 from dart-lang/keertip_context_menu

restore new file/folder context menu options
Merge pull request #615 from dart-lang/spinner-polymer

Added spinner css to polymer spark
working on restoring the splitter position
fix missing property
Merge branch 'master' of https://github.com/dart-lang/spark
Merge branch 'master' into devoncarew_splitter_fix
fixed issues w/ restoring the splitter location