Merge branch 'umop-outline-ui' into umop-outline-sync_ace
Added anchors to items and propagated events down to outline.  Included ranges for selection area.  Just printing results
Selecting correct range for user clicks on outline
Refactored outline population
Removed testing code
Resolved conflicts
Fixed css
Merge pull request #1339 from dart-lang/umop-outline-sync_ace

Outline syncing to Ace.