Added: HttpProxy parameter for setting proxies on stream urls.
removed ambiguous m_file in CachingCodec.h
[rbp] Ensure resolution infos have unique names

Currently the strMode for 2D and 3D resolutions have the same name.
This means the calibration info for a 2D mode can get replaced with a 3D mode
which can result in the pixel aspect ratio being reset to 0.5.

Also when using gui resolution clamping (i.e. 720p gui on 1080p display)
the calibration settings are scaled to gui resolution, but there is no indictation
of what the clamped resolution was when the settings were saved.

This means disabling gui clamping results in a minature gui.
(And I'd like to remove the gui clamping in the future).

Make sure all these resolutions have unique names by adding the gui resolution
and 3DSBS/3DTB to the resolution string.

Note: this will result in current calibration settings being lost.
[ios/atv2] - harmonize the behaviour of builtin "shutdownmenu" - it should behave the same on all platforms now that the shutdownmenu only has usefull entries
[ActiveAE] Function parameter 'format' should be passed by reference.
[WinRenderer] Member variable 'CWinRenderer::m_neededBuffers' is not initialized in the constructor.
[BaseRenderer] Member variables 'CBaseRenderer::m_RenderFeaturesCallBackFn' and 'CBaseRenderer::m_RenderFeaturesCallBackCtx' are not initialized in the constructor.
ActiveAE: fix unsigned/signed mismatch
ActiveAE: avoid resampling sounds when not needed
ActiveAE: use quality setting for resampling gui sounds
Merge pull request #3682 from basrieter/stream_proxy

Added: HttpProxy parameter for setting proxies on stream urls.
mpegts: revert old change for NOHEADER, we will handle it on PMT instead
Merge pull request #3826 from ace20022/init_uninit

[Renderer] Initialize member variables
Merge pull request #3825 from ace20022/aae_ref

[ActiveAE] Function parameter 'format' should be passed by reference.
ALSA: allow driver to increase number of channels, fixes playback of 5.0
[pvr] fix: wrong condition while getting first/last epg date
Merge pull request #3824 from FernetMenta/aefixes

ActiveAE fixes
changed: function parameter should be passed by reference
removed: the extra qualification 'CSysInfo::' is unnecessary
fixed: the parent class already defines a member variable m_processing but of different type. renamed it to avoid confusion.