Enable scrolling while drag&drop
Expose listitem.isDragged that is true, when a list item is currently dragged

Conflicts:
	xbmc/guilib/GUIBaseContainer.cpp
Inlist Drag&Drop for Favourites
In list Drag&Drop for Music Playlist
In list Drag&Drop vor Video Playlists
Skin Example 1
trying to fix drag hint
Added some rudimentary drag handle to confluence skin
Implemented Drag Handle functionality
Implemented Drag Handle functionality
Exposed some drag information, so the skinner has full control