Roveberrypy Docs

[ottopasuuna]

This branch adds better documentation for the roveberrypy framework. These docs are also hosted on Read the Docs.org here: http://roveberrypy.readthedocs.io/en/latest/.

List of changes:

• Added docstrings for most major RoverProcesses.
• Re-organized main.py to be a bit more modular.
• Setup documentation website generation with Sphinx
• Made tutorials for using Roverprocesses.