v1.3.3
no longer supported starting C++17
updated license header
minor code refactor in HUF module
changed error code when pos<=size condition is not respected
fix proper naming on FSE_createCTable() arguments in fse.h
Merge pull request #796 from terrelln/is-error
Ensure dictionary Huff table can encode any symbol
fixed one UB pointer arithmetic
removed direct call to malloc() from pool.c
[libzstd] pthread function prefixed with ZSTD_
[libzstd] Fix FORCE_INLINE macro
xxhash can be included twice in any order
merged repcode search into BT match search
fix a subtle issue in continue mode