simpler material model
add test for simpler
Merge pull request #76 from tjhei/simpler_model

Implement simpler model
Augment documentation slightly.
Make message look uniform.
Give an indication of how many tests we have.
Make message look uniform.
fix a melting term in the assemby
add another test
fix base elements
Merge remote-tracking branch 'jdannberg/include_melt_transport'
log number of inner iterations in Stokes preconditioner
update test outputs
Merge pull request #83 from tjhei/solver_statistics

Solver Statistics
Sort the names of plugins.

Sort the names of plugins in the documentation. Upon visual inspection, also fix a number of formulas and text issues found in the manual's description of the various plugins.
Merge pull request #84 from bangerth/sort-model-names-try-2

Sort the names of plugins.
Merged Juliane's changes
Merged with geodynamics/master
Fixed bug from last merge operation