Release 0.1.0

[nemesifier]

@pandafy I think that after the API is done (#48) we can issue the first release of the module and publish it to pypi.

This should push us to make everything prettier (eg: eliminate all "TODO" placeholders from the readme) and will help the rest of the OpenWISP community to take this effort more seriously.

Once #48 is merged, can you please prepare a summary of the most relevant features we added in the change log (see CHANGES.rst in the other modules) please? And set the version to 0.1.0 final. I'll then proceed to publish it on pypi and add you as a maintainer (create an account there if you don't have one yet).

Thanks in advance.