Adding an example of using DocUtils for the TribitsUserQuickstart.txt

Here I just took part of TrilinosCMakeQuickstart.txt and tried using DocUtils
and reStructuredText to see how the the formatting works.

I generated the *.html file with

  $ rst2html.py TribitsUserQuickstart.txt TribitsUserQuickstart.html

I generated the *.pdf file with:

  rst2latex.py TribitsUserQuickstart.txt TribitsUserQuickstart.tex

followed by:

  pdflatex TribitsUserQuickstart.txt

This file will be completely replaced by an updated version based on the most
recent copy of TrilinosCMakeQuickstart.txt.
Fixing small formatting issue
Adding skeleton for sphinx project files for TribitsUserQuickstart.rst
Adding just the basic generated files for TribitsUserQuickstart.rst with sphinx

I left out the rest of the generated html-related files.  I just want to put
this in to the git repo as an example to show others.
Fixing PDF input source.
Merge branch 'master' of pu239:/home/8vt/PROJECTS/Trilinos.base/Trilinos
Adding skeleton files for project-specific TribitsUserReference.rst
Initial project-specific quickstart generator script.
Updating title
Making output files read-only, printing filename in output
Adding single script to generate TrilinosBuildReference.*
Changing from 'quickstart' to 'quickreference'
Partial name changes (not working yet).
Another name change.
Finishing name change.
Removing temp files
Adding some info
Partial progress converting entire build quickref.
Merge branch 'master' of software.sandia.gov:/space/git/Trilinos
More progress.