Documentation configured to use sphinx rtd theme.

[DominicParent]

Sphinx uses sphinx rtd theme, no other changes.

To build the documentation, this means that users must now install the sphinx rtd theme. Documentation and/or wiki has instructions to do this.

[ryanmwhitephd]

Thanks @DominicParent I included the changes in my current documentation branch. I'll close this request.

[DominicParent]

I'll delete the branch then.