Enable SSL Support for remote PuppetDB query

Hello, 
I used your module to query puppetdb. However it seems it did not work with SSL out of the box (e.g. when puppetdb  is queried from another node). Here PupppetCA integration is needed. 

I added this support and for me it works now. Maybe it is worth an upstream merge.

P.s. I also added "pupppetdb/v2" to the packages list, so that "pypi2rpm" and "python setup.py build" works. 
Docu is added too.

Regards, 
Robert