* Use stringify for everything that has to do with testing
* Make stringify default for freeze_stable
* reenable python 3.3
* PEP8
* removed unneeded code
* replace pickle with repr
* untrue doc remove
* Sorting performance improved py true tree sorting instead of repr of the whole
  data-structure
* Made tests python3 compat
* TraversalBasedReprCompare typo
* sphinx doc improvments
* autosummary
* PEP8
* complete list of functions
* added cython version
* changed to nosetests
* added pylama
* added coverage as req
* complete coverage
* fixed pylama issues
* fixed python 2.7 tests
* TODO