Fixed bug in generating seed keypairs for signing
Merge remote-tracking branch 'hatch/master'

Conflicts:
	tests/unit/test_sign.py
Merge remote-tracking branch 'salt/master'
Merge remote-tracking branch 'salt/master'
Merge remote-tracking branch 'salt/master'
Merge remote-tracking branch 'salt/master'
Merge remote-tracking branch 'salt/master'
Fixed so will find libsodium on Ubuntu in /usr/local/lib
Merge pull request #32 from RaetProtocol/master

Fix so ubuntu can find libsodium
save permissions tweak

* change umask permissions to constants
* drop the user write - prevents file from being deleted on win32
* fix tests to pass on win32
Merge pull request #34 from mindw/win32_perm

save permissions tweak
add initial support for direct blake 2b hashes
fix save tests for python3
rename test hash class
Add tests for generic hash
Add tests for keyed hashes
Add high level blake object
update version to 1.4.0
Add tests for high level blake hash class
add blake2b function to better mimic python hashlib