Minor fix to formatting in call_module_load
Add 720x576 (DV-PAL) as another fallback v4l2 framesize
Merge pull request #206 from benklett/v4l2-add-pal

Add 720x576 (DV-PAL) as another fallback v4l2 framesize
Add searching for plugins instead of a hardcoded list
Remove lib prefix from plugins
Support loading plugins from subdirs
Move config values from the commandline to obsconfig.h
Add relative plugin dest obsconfig.h define