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.