Merge pull request #280 from prisms-center/development

2.4 Release

New update to document with v2.3 changes

Creating tag v2.2

added option for more frequent timing print out. v2.1.2 done.

updated the version and version change list

add badges to the README

improve discussion of time independent equations in the user guide, p…

…rep for release of v2.0.2

Updated docs (especially the dendrite app) (#91)

* updates to the dendritic solidification app, cleaning up the derivation. still needs some more explanation

* finished overhaul of the dendriticSolidification documentation, incl notational changes to the equations.h file

* update the user guide for v2.0.1, fix duplicate documentation file for precipitateEvolution

* minor tweaks to the dendritic solidification documentation

improved the non-uniform dirichlet BC description in ICs_and_BCs.h

fix include paths for parallelNucleationList