idaholab/moose — pull request #4327 by dschwen (2014-12-02 21:32:36+00:00)
Title: Add DerivativeTwoPhase material

Adds a "meta"-material which combines two ```DerivativeBaseMaterial``` descendants using a non-conserved order parameter. This allows flexible construction of multi phase free energies.

This contains two other pending PRs. I'll rebase this once those are merged.