Add Apache-style htpasswd file support
md5 still needs to be added, important since it is the default format.
Rework the encryption system selection
Prune the names down and make it explicit if it is an Accept or a Reject
in the name.
A little API renaming and documentation adding.
Add some tests for hashing systems
Add tests for bcrypt rejecter
added md5 hash function
Lose dev printfs and get idiomatic and documented
md5 testing in place
catch up on formatting
lots of SHA test cases
Tolerate nginx style plain passwords.
Add testing, and fix the two bugs it found.
Catch README.md up with code.
Mention the chained handlers for security technique
missed a paren
go fmt
Make readme read a little better.
Take some lies out of the API documentation.