initial implementation of serializeDagModel
Implement changes discussed with Andy. Add debounce.
move inspector item description to tooltip
freeze and thaw now work completely
flat display style
markup to vertically center content in operator container
Merge branch 'ng-live-operator-data.MLHR-1411' into tmp

Conflicts:
	app/pages/dev/packages/package/dagEditor/dagEditor.js
	app/pages/dev/packages/package/dagEditor/dagEditor.less
	app/pages/dev/packages/package/dagEditor/dagOperator.html
wrap long line; use dt-text-tooltip instead of title attribute for help text
Merge branch 'ng-live-operator-data.MLHR-1411' into tmp

Conflicts:
	app/pages/dev/packages/package/dagEditor/dagEditor.less
removed unnecessary .operator-class styling
Merge branch 'tmp' into tmp2
Merge branch 'ngConsole' into MLHR-1383_export_topology
Merge pull request #182 from DataTorrent/MLHR-1383_export_topology

Freeze/Thaw DAG; Flat Style