- add the "fast compression levels" of zstd via "fast" option (fast=1..64)
- change the 7-Zip property sizes of LZ4, LZ5 and Zstandard to 3
- 3 and 5 byte header are valid now (default is 3)
- update the Methods-Extern.md file, to reflect the property changes
- add some pragma definitions to brotli port.h
- change lz4 code, to include zstd/xxhash.h
- fix various objects in makefile's
- fix LzHandler.cpp, LZIP has now 0xC5 @ Guid.txt
- improve logging on AppVeyor
- fix version numbers in codecs
- rename "Codec_zstdF" to "Codec_zstd_legacy"
- add missing objects for lizard
- corrected copyright information in new codecs
- fixed thread combobox for the new codecs
- fixed lizard level combobox (level 10..49) are now there ;)
- update of zstd-mt library
- add brotli v0.6.0
- add lizard v2.0
- xxhash is from zstd for lz4, lz5 and lizard now
- update also the documentation, where needed