Update HEVC lib

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4540 63c20433-aa62-49bd-875c-5a186b69a8fb
Update openhevc lib

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4541 63c20433-aa62-49bd-875c-5a186b69a8fb
Fix nsis installer

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4542 63c20433-aa62-49bd-875c-5a186b69a8fb
Fix warnings on openhevc

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4543 63c20433-aa62-49bd-875c-5a186b69a8fb
tmpfile: set a more relevant log level

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4544 63c20433-aa62-49bd-875c-5a186b69a8fb
fix dashcast build (libav compatibility with the old AVIO API)

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4545 63c20433-aa62-49bd-875c-5a186b69a8fb
Update hevc with static lib

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4546 63c20433-aa62-49bd-875c-5a186b69a8fb
Update hevc

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4547 63c20433-aa62-49bd-875c-5a186b69a8fb
fix MP4box editlist merging
ex: 1st file untouched, 2nd file with an initial pause => trying to cat both

git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4548 63c20433-aa62-49bd-875c-5a186b69a8fb
add libav-0.8.4 headers to dashcast


git-svn-id: https://gpac.svn.sourceforge.net/svnroot/gpac/trunk/gpac@4549 63c20433-aa62-49bd-875c-5a186b69a8fb
Fix build error of DashCast

Regression in svn r4486.
Git HASH: cdb4d90722790cd71f2a2fed82dc555e07a1058a
Merge branch 'plain'

Conflicts:
	applications/dashcast/audio_muxer.h
	applications/dashcast/video_muxer.h
	applications/mp4box/fileimport.c
	modules/openhevc_dec/openhevc_dec.c
	src/scene_manager/scene_engine.c