v1.5.7-kernel
Minor tweaks to pzstd graph
Remove unnecessary extern C declarations from programs/ and contrib/
[contrib/pzstd] Prevent hangs when there are errors
zbufftest only depends on standard C time.h
Add BUCK files for Nuclide support
Coalesce Almost All Copyright Notices to Standard Phrasing
pzstd: use c++14 without conditions
Included suggestion from @neheb
Convert references to https from http