LPS-35117 Basic add_content cleanup
LPS-35117 Shows add content items as nav-item in a nav-list
LPS-35117 Wraps portlets into row-fluid
LPS-35117 Adds application search data
LPS-35117 Fix dragging resources
LPS-35117 Switches to use popover for preview content instead of the deprecated tooltip
LPS-35117 Cleans up small add-content remaining issues
LPS-35117 Updates classic portal template
LPS-35117 Improves preview popover creation and management
LPS-35117 Adds preview styles and titles for icon display state
LPS-35117 Positions add item absolute to support properly IE7