v1.8.0
added v1.x.y to versions tests
versionsTests moved to tests/
cli : restored command -BX to enable block checksum (#322)
udated README.md
executables use basic types from util.h
fixed strict aliasing warnings in fasttest
restored block checksum capability at lz4frame API level
util.h and platform.h based on zstd
added `extern C` for lz4.h static section
VS project: added setargv.obj
fixed versionsTest