New VarTree syntax works one-level deep (see test_vartree.py).
More cases updated to new VarTree syntax (single-level only so far)
name = VarTree(VariableTree()) syntax works with band-aid for component.connect issue.
Simplified VariableTree syntax works with published plugins.
Cleanup of simplified VarTree syntax.
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into bug
Final (?) cleanups for simplified VariableTree syntax.
Merge pull request #1323 from setowns1/bug

New VariableTree syntax -- API INCOMPATIBILITY