don't request streams when opening the demux, it is always done soon after
when the DMX_SPECIALID_STREAMCHANGE packet comes in
[Fix] Cleanup emu environment items on exit.
Remove unused define in emu_msvcrt.
Free allocated CTimeSmoother at exit.
[AE] Free AVIOContext and its buffer.
[AE/osxsink] - distinguish between passthroughnative and passthroughbitstream in the findsuitableformat method
[AE/osxsink/coreaudio] - split registration for the devicelist changed callback and registration for the default output device changed callback and
move the coreaudio callback registration methods to CCoreAudioDevice and add possibility to suppress the defaultdevicechanged callback for a given time
[AE/osxsink] - open the device before setting hogmode (as sethogmode relies on it!)
[osx/coreaudio] - suppress default output device changed callbacks for 2 seconds when setting physical and virtual formats
[pvr] workaround a deadlock if no pvr addons exist and you activate the pvr manager
changed: Remove display of XBOX dvd icon unused code

This would display a XBOX dvd icon if DefaultXboxDVD.png still existed
which doesnt anymore,
change: remove unused xbox overlay support

This is legacy from the xbox days. highly unlikely to ever be used again

ICON_OVERLAY_TRAINED
ICON_OVERLAY_HAS_TRAINER

and removes references to respective unused textures

OverlayTrained.png
OverlayHasTrainer.png
remove all "using namespace" from header files
Merge pull request #4532 from Jalle19/header-std-namespace

Don't import namespaces header files
[settings] pass the current video settings to SaveFileState job
[cosmetics] always create the save file state job on the heap
[settings] use SaveFileState() instead of SaveCurrentFileSettings()
[settings] don't ignore PVR channels in SaveFileState()
[application] create LoadVideoSettings() method
[pvr] remove most calls to saving/loading channel settings