[Fix] Cleanup emu environment items on exit.
Remove unused define in emu_msvcrt.
Free allocated CTimeSmoother at exit.
[AE] Free AVIOContext and its buffer.
[pvr] workaround a deadlock if no pvr addons exist and you activate the pvr manager
[addons] fix addon settings not showing up (lsep, sep)
[pvr] bump api to 1.9.1
Merge pull request #4944 from ace20022/memleaks

[RFC] Fix memleaks
[tests] fixed md5 tests
[depends] drop duplicate DEPENDS_PATH specification in audioencoder Makefile
[stdstring] get rid of CStdString from utils/ (part 1)
[stdstring] get rid of CStdString in dbwrappers/
[stdstring] get rid of CStdString in playlists/
[stdstring] get rid of CStdString in view/
[stdstring] get rid of CStdString in network/
[stdstring] get rid of CStdString in filesystem/*File.cpp|h
[stdstring] get rid of CStdString in filesystem/*Directory.cpp|h
[stdstring] get rid of CStdString in filesystem/(Music|Video)DatabaseDirectory/
[stdstring] get rid of CStdString in filesystem/
[stdstring] get rid of CStdString in dialogs/