Merge pull request #1733 from setowns1/bug

Fix CaseIteratorDriverBase for neural_net plugin use case
updated version of pyV3D in go-openmdao-dev.py file
Merge pull request #1734 from naylor-b/pyv3d_version

updated version of pyV3D in go-openmdao-dev.py file
Parameters of ISolver drivers do not require high/low metadata.
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into bug