Leave todos.
Merge branch 'master' of github.com:geodynamics/aspect into compressible_perplex
Initial conditon plugin for solidus
Update steinberger material model to run with the new material model interface (calling also viscosity for the creation of the adiabatic conditions).
Add experimental support for compressibility in the steinberger material model.
Create solidus.h

Header for solidus initial condition plugin
Update solidus.cc
Update solidus.cc
Update solidus.h
Update solidus.h
Add data file for solidus initial condition
3D support
Use M_PI for Phi
Update solidus.cc
Update solidus.cc
experimental material model lib for inclusion benchmark
use the recommended way to set up the CMakeLists for shared libs
Change perturbation
Update the header
Merge branch 'gplates_cookbook_patch' into compressible_perplex