DOC: Fold user's guide source at 80 char width
Convert [Baier, 2008] to link to bibliography in user's guide
DOC: Rebirth link
DOC: Improve word choice in install guide, given EPD vs Canopy

The installation guide previously claimed that EPD was now called Canopy,
but that is not so.  Canopy is distinct from EPD, and EPD appears to be
in end-of-life (I am speculating based on the Enthought website at time
of writing).
Also, cf. https://www.enthought.com/products/canopy/faq/
DOC TRIV: Strip by-line from README
link to  matplotlibrc doc for backend cfg
XML Import and Export file
Is mostly independent of other modules
Changed Stateflow export to not use Sinit as an initial condition
Removing Sinit from list of states exported.
update documentation, removed pdb import
Merge branch 'master' into doc