[rbp/omxplayer] No need for two debug messages per component init
[rbp/omxplayer] Ignore expected errors when tearing down audio
[rbp/omxplayer] Copy audio splitter port parameters directly

Should have the same effect, but direct way seems more robust to other changes
[rbp/omxplayer] Remove tunnel flushes

A tunnel flush flushes the ouput port of the source component and the input port of the dest component.
However the code already flushes all the ports of components, so many ports are flushed twice.

Remove the tunnel flush API and just flush component ports
[rbp/omxplayer] Make disabling ports optional

We typically don't want to disable ports after establishing a tunnel, so make this optional and default to false.
[rbp/omxplayer] Avoid hiding some unexpected error conditions
[rbp/omxplayer] Remove component locking

The OMX library is thread safe.

If we need to provide atomicity of groups of accesses, then that is done at the higher level
(e.g. OMXAudio), so remove the lock from the lowest level
[rbp/omxplayer] Add wait to port enables/disables
[rbp/omxplayer] Remove component locking

The OMX library is thread safe.

If we need to provide atomicity of groups of accesses, then that is done at the higher level
(e.g. OMXAudio), so remove the lock from the lowest level
[rbp/omxplayer] Restructure COMXImage

Tidy up of COMImage. Separate into file reading, encode and decode classes with separate locks.
This allows some overlap of functionality which improves the speed.
[rbp/omxplayer] First attempt at a jpeg thumbnail pipeline
[rbp/omxplayer] First attempt at decode to texture
[rbp/gui] Add switch between higher and lower quality textures

To save memory we default to 16bpp textures,
but provide a GUI option to increase that to 32bpp.
[rbp/gui] Add switch to remove GUI 720p limit
Merge xsp_sql_optims branch from Montellese
[CEC] Fix occasional deadlock when booting
[rbp/omxplayer] Add caching of states to reduce number of round trip delays to GPU
Revert "[rbp/omxplayer] Add caching of states to reduce number of round trip delays to GPU"

This reverts commit 691cfc567895b6645d7052b292f44f557004059b.