More mv tests and use cases
Merge pull request #433 from ebfe/fix-build-master

fail! -> panic!
Merge pull request #432 from awestroke/more_mv_test_cases

More mv tests and use cases
Update rust-crypto
Merge pull request #435 from ebfe/rust-crypto

Update rust-crypto
head, tail, uutils: fix build
Fix get_mut deprecation warnings