2.0.2: - stage: PARAM command is now synchronized with rendering thread.

2.0.2: - stage: PARAM command is now synchronized with rendering thread.
       - ffmpeg_producer: PARAM LOOP and PARAM SEEK implemented.
       - playlist_producer: Added some more small features.hpp
NOTE: PARAM is a horrible name for this command, should be replaced with INVOKE or something similar in the future.

git-svn-id: https://casparcg.svn.sourceforge.net/svnroot/casparcg/server/branches/2.0.2@1659 362d55ac-95cf-4e76-9f9a-cbaa9c17b72d