Update version to be a PEP386 strict with a minor qualifier of 0 for now.

This version becomes a "strict" version under PEP386 and should be recognized by install/packaging tools (such as distribute/distutils/setuptools) as newer than 2.0.0-beta. This will also help making small increments of the version which brings some sanity when using an update from HEAD and ensure that things will upgrade alright.
Merge pull request #777 from pombredanne/patch-1

Update version to be a PEP386 strict with a minor qualifier of 0 for now...
Fix bug
Merge pull request #778 from falinsky/patch-1

Fix bug in setup.py
Update version to 2.0.0b0 in doc conf
.. to redeem myself of the unlucky #777 minimess
Merge pull request #779 from pombredanne/pep386_docfixes

Update version to 2.0.0b0 in doc conf
Removed commercial support info.
more_like_this: honor .models() restriction

Original patch by @mattdeboard updated to remove test drift since it was
originally submitted

Closes #593
Closes #543