remove unused LinuxTimezone.h include
settings: fix timezone-related settings visibility and default values
settings: fix loading of platform-dependent settings definition files
settings: allow appliance.xml to overwrite runtime-dependent visibility conditions and default values
[rbp/omxplayer] Remove unused variable m_pTempOverlayPicture
[rbp/omxplayer] Remove unused Pause/Resume functions

These should be implemented with clock component
[rbp/omxplayer] Remove call to OMXLateCount that will be removed
[rbp/omxplayer] Remove unused clock code
Merge pull request #2799 from popcornmix/cosmetics

[rbp/omxplayer] [Cosmetics] Remove unused code
[cleanup] moves IGUIContainer into a separate include and drops the GUIBaseContainer.h include from GUIViewControl.h.
[rbp/omxplayer] Support planar float format audio directly

The update to ffmpeg1.2 has produced a significant performance hit on the Pi when decoding multichannel audio without passthrough.
This is because (most) audio codecs now output planar floating point, rather than interleaved S16 samples.
OpenMax/GPU can handle interleaved S16 samples directly, whereas the floating point planar samples get converted with swr_convert.
This is a slow operation, and a quick profile showed it to be taking about 150MHz of ARM CPU when using 6 channel audio.

I've added support on GPU for a new floating point planar format in audio_decode component.
This PR makes this format also supported for sending audio to the GPU.
The GPU now also handles the 6->8 channel padding so the UpMix() function is no longer required,
which may improve performance compared to pre-ffpeg1.2 version.

This PR requires recent GPU firmware. (384946 or later).
vdpau: fix segfault caused by uninitialized member
Merge pull request #2796 from Montellese/settings_initialization_fixes

settings: initialization fixes
Merge pull request #2815 from FernetMenta/vdpaufix

vdpau: fix segfault caused by uninitialized member
[osx] changed, move videoplayer.usevda into darwin_osx.xml and nuke a vda dyload define
Merge pull request #2814 from popcornmix/audio_float_planar

[rbp/omxplayer] Support planar float format audio directly