v1.8.0
updated README.md
lz4 version source from lz4.h
added a few dates
better respect GNU standard Makefile conventions
Merge pull request #380 from lz4/dictID
dictionary compression correctly uses compression level
fix : asan error in dctx, due to increased maximum frame header size, reported by Craig Young
restored block checksum capability at lz4frame API level
fix #369
Allow to predefine FORCE_INLINE macro.
updated xxhash lib