added the load_project function to allow access to project objects from within a python cmd line script.
Merge pull request #1462 from setowns1/bug

Convert strings to FileRefs for File variables.
updated project deactivate for non-gui
updated project test
updated project test
Merge pull request #1463 from naylor-b/load_project

added load_project function
Report traceback when printing cases.
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into bug