Add the content of the panel to a panel-content container
Extended save/cancel to row and dashboard editors. Allow rows to overflow gracefully. Normalized spacing between panels
Fixed resize events
Fix column panel, closes #832
Add subtle border to panels, improve dragging representation
Improve visibility of available drag spaces
Align row buttons with panels
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/app/directives/kibanaPanel.js
	src/app/partials/dasheditor.html