PBS, ExternalCode, RAM, and testing fixes for external users.
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into bug
Merge pull request #1288 from setowns1/bug

PBS, ExternalCode, RAM, and testing fixes for external users.
Merge branch 'dev' of https://github.com/OpenMDAO/OpenMDAO-Framework into docs_update