Multiple changes

* Index > Funding: Link to funding sources, put "MPM" (in parentheses)

* Install > Dependencies: List Dot and Pygraphviz as optional for users
who want workflow graphs.

* Install > Dependencies: Look and see if there is a GUI to install
PIP/Setuptools. [was not able to find any]

* Install: Add notes about how long users can expect each (major)
download to take.

* Install > CLI: Look for a Mac-oriented guide for total novices.