fast sha2

Bump Compat requirement

More 0.7 compat (#52)

* `copy!()` -> `copyto!()`

* Quash more 0.7 compatibility bugs

* Require at least Compat 0.38

Optimize SHA1 implementation. (#47)

fix typo in comment

Much smarter file wrapper that loads in files one chunk at a time

Merge pull request #40 from musm/patch-1

Remove extra spaces

Merge pull request #36 from Sacha0/fixdepwarns

fix depwarns under 0.7 and bump REQUIRE and CI to 0.6

Merge pull request #35 from yuyichao/align

Fix wrong use of reinterpret

SHA v0.3.2 [08bfbf1]