Ensure that even very small buffers have enough padding
Fix crash when opening images
Make the interlaced H264 hack a bit more reliable
Fix corruption when seeking in interlaced H.264
Remove CPUFlags stuff from the avisynth plugin
Make the vapoursynth error handling less verbose
Remove unused things
Add BT.2020 values to FFMS_ColorSpaces
Extract some duplicated error handling stuff in the avs plugin
Use int64_t for file positions
Merge branch 'master' into cplugin_master

Conflicts:
	Makefile.am
	Makefile.in
	aclocal.m4
	configure
	ltmain.sh
	missing
Fix .travis.yml for the C-plugin branch
Update GNUmakefile

Remove:
stdiostream.cpp

Add:
filehandle.cpp
haalicommon.cpp
matroskareader.cpp
track.cpp
zipfile.cpp
GNUmakefile: Improve source file list readability