OpenMDAO/OpenMDAO-Framework — pull request #1643 by Kenneth-T-Moore (2014-02-17 19:44:53+00:00)
Title: Group differentiable islands in their non-differentiable groups

Modification to our grouping of components that need to be finite differenced. Now, if there are non-differentiable components that would end up in a cyclic loop with a pseudoassembly, such components are also added to that pseudoassembly.