further testhosts.cfg updates
Merge branch 'dev' of github.com:kmarsteller/OpenMDAO-Framework into dev
Removed/replaced references to Python 2.6 in the user docs.
Merge pull request #1409 from pziegfeld/remove_python2-6

Removed/replaced references to Python 2.6 in the user docs.
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into dev
finalizing testhosts.cfg
Merge pull request #1410 from kmarsteller/dev

testhosts.cfg edit before release
"updating releaseinfo files for release 0.8.0"
Update README.txt
Merge branch 'hifi' of github.com:Kenneth-T-Moore/OpenMDAO-Framework into hifi
Add additional output to sequentialflow:check_gradient()