Bump version and fix setup.py.

The 0.0.7 version on [pypi.python.org](https://pypi.python.org) (and mirrored on [pypi.edgeware.tv](http://pypi.edgeware.tv)) doesn't contain the fix introduced by https://github.com/edgeware/structprop/pull/3 that preserves the order in objects.

It's required for convoy-mgmt to pass its tests and successfully build. Right now it relies on pulling from master directly on GitHub.