Merge pull request lz4#1138 from lz4/dev

stage v1.9.4

Merge branch 'dev' into release

fixed test error

could trigger %0 on exceptional circumstances
due to wrong buffer size parameter.

Merge pull request lz4#692 from lz4/dev

v1.9.1

Merge pull request lz4#673 from lz4/dev

minor update for v1.9.0

Merge pull request lz4#572 from lz4/dev

v1.8.3

Merge pull request lz4#531 from lz4/dev

Preparing v1.8.2

restored .travis

updated NEWS for v1.8.1

fix : asan error in dctx, due to increased maximum frame header size,…

… reported by Craig Young