Removed generating new texture repeatedly during character cache.
Copy valid region only from old texture after ReallocTexture().
As a result, reduced stuttering video playback with subtitle.
Use TEXTURE_VOID instead of m_bTextureLoaded
[videodb] fix seasons update query for mysql, which doesn't like SELECT subqueries on the same table
[cleanup] followup to f86b9d2884
[videodb] fix tvshow view for mysql by utilising a subview. Thanks to @sccplg
Merge pull request #4988 from mkortstiege/threadmsgs

[cleanup] followup to f86b9d2884
Merge pull request #4985 from jmarshallnz/fix_mysql_query

[videodb] fix seasons update query for mysql
[appmessenger] fix MediaPlay regression introduced by f86b9d2
Merge pull request #4993 from mkortstiege/playfile

[appmessenger] fix playfile regression introduced by f86b9d2
ActiveAE: Add queries to determine number of channels output
[omxplayer] Make use of audio decode fast paths when downmixing

The TrueHD codec actually works in 3 stages.
It decodes the downmixed stereo.
It then decodes the differences required to produce 5.1.
It then decodes the differences required to produce 7.1.

Many users end up downmixing this 7.1 stream back to 2.0.
Much better to tell the codec we only need the 2.0 stream.

When playing a 94s duration video file on an overclocked Pi, the audio decode took:
7.1 channels: 39.6s
5.1 channels: 36.5s
2.0 channels: 23.0s

So, it's almost twice as fast to decode TrueHD when only stereo is required.
[tagloader] read popm ratings from banshee (closes #15333)
[binary addons] move bindings list to a single file
[audioencoders] move vorbis, lame, flac and wav audio encoders to add-ons
[osx] xcode changes
[win32] project changes for audioencoders
[addon-helpers] set building shared libs as default and try to link as static as possible on all platforms but linux
cmake: add xbmc-addons project, filled with audioencoder addons
[win32] add make-addon-depends.bat and cmake-based addon-depends system
[win32] update BuildSetup.bat and installer