[LIST][*]IAMStreamSelect: fix duplicated subtitle list in case of multiple ffdshow instances (decoder and subtitles filter);
[/LIST][LIST][*]Cosmetics;
[/LIST][LIST][*]fix a comment;
[/LIST][LIST][*]Decoder options: Number of decoding threads: set proper default value (used on "Reset");
[/LIST][LIST][*]minor clean up of color space converter selection code;
[/LIST][LIST][*]fix prior commit.
[/LIST]
ffdshow converter was crashing on single CPU PC, if dithering was unchecked.
-Updated palette handling
-update zlib to v1.2.6
-fixed ICL12 x64 crashes
[LIST]
[*]Updated Libav;
[*]Initialize palettesize;
[*]Updated blacklist and whitelist.
[/LIST]
* Sync with IntelQuickSync Decoder rev30:
* VC1 decoder fix.
* Fixed H264 in avi support.
* Fixed CCV1 support.
* Faster gpu_memcpy function.
* No ffdshow code chang.