OZP-54: WidgetControl initialize and css class handling
OZP-54: Desktop pane code review fixes

Including previously missing unit tests for LayoutPane
OZP-55: Tab pane code review fixes
OZP-57: Portal Pane code review changes
OZP-10: Drag mask in dashboards
OZP-10: Fixing IE7 Iframe sizing
Merge branch 'code-review-fixes'

Conflicts:
	bundles/client/dashboard/src/main/webapp/js/app.js