Add manage.py file for opening a shell and testing.
Replace old runtests.py script with new manage.py interface.
Merge branch 'master' into manage-py
Revert "Replace old runtests.py script with new manage.py interface."

This reverts commit e7317636f1c171727e63dd7d8c829e888c3e61e3.
Remove manage.py (not actually useful.)
Merge branch 'master' into locu-patch
Specify master branch for build status image.
Merge branch 'master' into locu-patch
Merge remote-tracking branch 'origin/locu-patch' into locu-patch