[FFmpeg] version bump to n1.2 (rev e820e3a) - lib/ffmpeg

This commit now contains the original patches sub directory:
  patches 			- Org dir that contains applied xbmc custom patches.
  patches/README-patches	- New README file with info about xbmc patches.
  patches/obsolete-patches	- New dir with obsolete xbmc patches.
[FFmpeg] version bump to n1.2 (rev e820e3a) - xbmc files

lib/DllAvFormat.h
lib/Makefile.in
lib/ffmpeg/build_xbmc_win32.sh
project/Win32BuildSetup/BuildSetup.bat
project/Win32BuildSetup/buildmingwlibs.sh
tools/depends/native/gas-preprocessor-native/gas-preprocessor.pl
xbmc/DllPaths_win32.h
xbmc/cores/dvdplayer/DVDAudio.h
xbmc/cores/dvdplayer/DVDCodecs/DVDCodecs.h
xbmc/cores/dvdplayer/DVDCodecs/Video/DVDVideoCodecFFmpeg.cpp
xbmc/cores/dvdplayer/DVDCodecs/Video/DVDVideoCodecFFmpeg.h
xbmc/cores/dvdplayer/DVDCodecs/Video/DVDVideoCodecLibMpeg2.cpp
xbmc/cores/dvdplayer/DVDCodecs/Video/DXVA.cpp
xbmc/cores/dvdplayer/DVDDemuxers/DVDDemux.h
xbmc/cores/dvdplayer/DVDPlayerAudio.h
xbmc/cores/dvdplayer/DVDStreamInfo.h
Add support for new libcec method, PowerOnScreensaver
[cosmetics] add the files to string.po to indicate where strings are used
[win32][added] Hybrid shutdown on Windows 8
upnp: fix wrong library paths in container updates
[rbp/omxplayer] make sure we can also abort the open of a ffmpeg input stream
[rbp/omxplayer] reevaluate HasVideo/Audio after a stream change
Merge pull request #2012 from jmarcet/master

Add new Built-In function to control attached CEC device
Merge pull request #2578 from a11599/hybridshutdown

[win32][added] Hybrid shutdown on Windows 8
avoid detect folder.jpg under 'add' item.
fixed, a) space monster running wild, b) += monster running wild, c) using -std=gnu99 in platform_cxxflags, d) remove -Wl,-search_paths_first from darwin, no required and spews all over the place
fixed, missed one in previous commit
[WIN32] removed m_AppActive and use SetRenderGui instead.
Merge pull request #2546 from wsoltys/setrendergui

changed: removed m_AppActive in favor of SetRenderGUI()
Merge pull request #2585 from ulion/avoid_detect_folderjpg_under_add_item

avoid detect folder.jpg under 'add' item.
[Fix] PlayerSelectionRule GetPlayers().
This partially reverts commit e575a7f0a47b5578b64b800d09910f260e9b0292
[Cores] Remove redundant predicates in conditions.
Merge pull request #2583 from alcoheca/upnp-fix-paths

upnp: fix wrong library paths in container updates
Merge pull request #2588 from ace20022/fix_PlayerSelectionRule

[Fix] PlayerSelectionRule GetPlayers()
[rbp] Fix elapsed time not updating near end of file

Currently, once demuxer has reached EOF, we send the EOF messages to audio/video players
and set their inited/started flags to false. But if started is false we ignore any
PLAYER_DISPLAYTIME coming back from players, which stops the elapsed time from updating.
This can affect the final ~8 seconds of the file.

The fix delays changing these flags until audio/video players have signalled EOS.