2.1.0: Merged trunk.

2.1.0: Merged trunk.

r1937
Pretty printing.
---------------------
r1936
Pretty printing.
---------------------
r1935
More pretty printing.
---------------------
r1934
More nice printing.
---------------------
r1933
Nicer printing.
---------------------
r1932
executor: Throw on begin_invoke while stopped.
---------------------
r1931

---------------------
r1930

---------------------
r1929
Catch CG command exceptions.
---------------------
r1928
Lock helper now returns value.
---------------------
r1927

---------------------
r1926
Less verbose logging.
---------------------
r1925
graph: Minor improvements. frame_producer: print init and uninit. ffmpeg/input: Use executor instead of explicit thread and cond-var.
---------------------
r1924
Fixed graph memory-leak.
---------------------
r1923
frame_muxer: Use optimal NTSC cadence.
---------------------
r1922

---------------------
r1921

---------------------
r1920

---------------------
r1919
- ogl_consumer: Fixed params for create. - Added channel-grid functionality.
---------------------
r1918
Added channel-grid.
---------------------
r1917

---------------------
r1916

---------------------
r1915

---------------------
r1914

---------------------
r1913
flash_producer: Throw file_not found in creation thread.
---------------------
r1912
Fixed CII encoding.
---------------------
r1911
Fixed wierd include.
---------------------

git-svn-id: https://casparcg.svn.sourceforge.net/svnroot/casparcg/server/branches/2.1.0@1938 362d55ac-95cf-4e76-9f9a-cbaa9c17b72d