fixed test
Merge pull request #1678 from setowns1/bug

Drop extra invalidation in Container.set()
Merge branch 'dev' of https://github.com/OpenMDAO/OpenMDAO-Framework into dev
bug fix for math mistake in expected_improvement
Merge pull request #1679 from JustinSGray/dev
Quicker Case creation (uuid1() is slow).
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into bug