Skin fixes

Mostly smaller commits that directly fix issues in the skin, reported in Neon subforum.
There might be one or two fixes I ran in to while checking up on something else.

Related threads:
Fix: Slide View: trailer possible in fullscreen : http://forum.xbmc.org/showthread.php?tid=163578
Fix: 'Restart XBMC' from shutdown menu: http://forum.xbmc.org/showthread.php?tid=164149
Fix: Full Screen video: episode number visible: http://forum.xbmc.org/showthread.php?tid=163387
Fix: Smaller codecinfo font so VDPAU info fits: http://forum.xbmc.org/showthread.php?pid=1126392#pid1126392