* [x] Support versioning
* [x] Test use of `plpy` from python Package
* [x] Add `pysal` etc. dependencies
* [x] Define documentation practices (general, per extension/package?)
* [x] Add initial function set (WIP)
* Unify style of function comments
* [x] Add integration tests
* Make target to open a new version development (create symlinks, etc.)
* [x] Should add cartodb ext. as a dependency?