Unversion the dev requirements

The requirements does not install cleanly for reasons unknown. Removing the
version requirements for now. The dev file should be pretty agnostic for such
things anyway.
Revert "Start using versioneer"

This reverts commit 13c52664957b2aabd1eedea10d402fa4f634713d.

I never really enjoyed using it. :/
Re-fix packaging

I made a lot of poor decisions in October, heh.
Also, bump year in license.