Fixes for bugs found during review

[rlindsgaard]

Bugs described in #2

[Munter]

Never make version changes on branches. When merged into master use npm version patch to get the sae functionality, but also have the version bump in a separate commit with a git tag as well

[Munter]

Hash changes based on a change in the implementation point at a major version increase when this gets merged, since the changes are not backwards compatible

[Munter]

I'd really like if we could improve the test suite to reflect all of these findings. We're just asserting on the resulting outcome instead of testing the mechanics of the algorithm, thus making the test useless in testing the actual specifications

[rlindsgaard]

It would be nice to have proper tests of the internals. I propose merging this in, bump the version (I don't really care if it is a minor or major version) and then start a develop branch where we start with rewriting to make tests and maybe implement a more general version. The constants used are more or less grabbed from the thin air as it is right now.