Added test for gradient_options.
fixed test_workspace.test_properties
Skipped failing tests due to variable tree bug.
Commented out tests failing due to bug with variable trees. Must be uncommented when bugfix comes in.
Merge pull request #1632 from crobinsonut/gradient-options-framework-var

Gradient options framework var
todays work
changed force_fd in Driver back to False
fixed vartree framework variables to sort, expand, and contract in GUI correctly.
Merge pull request #1634 from naylor-b/dev

changed force_fd in Driver back to False
Removed commented line from component.get_attributes related to vartrees.
Merge branch 'dev' of https://github.com/OpenMDAO/OpenMDAO-Framework into dev
Fixed test_console_errors and test_properties.
Modified column_sorting to test for vartree framework variable.
Merge pull request #1635 from crobinsonut/dev

Fixed vartree framework variables
stuff
some progress
Merge branch 'dev' of https://github.com/OpenMDAO/OpenMDAO-Framework into bench
some fixes
Merge pull request #1636 from Kenneth-T-Moore/bench

Some fixes for NREL modeling
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into vtree_successors