[keccak-hash] Add no_std support, migrate to 2018 edition#177

Merged

dvdplm merged 5 commits intoparitytech:masterfrom koushiro:update-keccak-hash

Aug 12, 2019

+35-19

Commits on Jun 4, 2019

Add no_std support for keccak-hash;
koushiro
committed

Commits on Jun 6, 2019

Revert return type; Remove rustc-hex
koushiro
committed

Commits on Jun 26, 2019

Move extern crate alloc to test
koushiro
committed

Commits on Jul 16, 2019

Merge branch 'master' into update-keccak-hash
ordian
authored

Commits on Aug 12, 2019

Merge branch 'master' into update-keccak-hash
dvdplm
authored