Minor style fixes.
Merge pull request #163 from bangerth/const-fixes

Minor style fixes.
Fix subversion keywords

Fix up forgotten $Id: ... $ - tags in several files.

This commit is primarily intended to test dev-vcs/hub [1] for pull-requests
on the command line

[1] https://github.com/github/hub
Merge pull request #164 from tamiko/fix_subversion_keywords

Fix subversion keywords
Merge branch 'grain_size_dependent_rheology' of github.com:jdannberg/aspect into grain_size_dependent_rheology
Add visualization postprocessor for reaction terms of compositional fields.
Merge branch 'grain_size_dependent_rheology' of github.com:jdannberg/aspect into grain_size_dependent_rheology
Merge branch 'grain_size_dependent_rheology' of github.com:jdannberg/aspect into grain_size_dependent_rheology
Merge branch 'grain_size_dependent_rheology' of github.com:jdannberg/aspect into grain_size_dependent_rheology
Add viscosity ratio function to damage_rheology material model.
Bugfix for reaction term postprocessor.
Unified interface for dislocation and diffusion viscosity.
Bugfix for damage rheology.
Merge pull request #4 from gassmoeller/grain_size_dependent_rheology

Grain size dependent rheology