Working libvlc camera implementation.
Adds web ui support for libvlc camera.
Fix seemingly random lockup.
All colourspaces now working
Check for frame differences as libvlc provides frames at a constant 15fps even if they are duplicates
Better error handling
Might now build with autotools.
Add header file checks for vlc/vlc.h
Fix bug in frame difference checker.
Merge pull request #1 from ZoneMinder/libvlc-improvements

Add header file checks for vlc/vlc.h
Monitor link now displays for all valid libvlc paths.
Merge pull request #277 from ebarnard/libvlc

Add libVLC source type