copy step1 to step3 to start
saving start of step3
Start step4 example
step-3: initial refinement, coarsening, and vtk
Doxygen updates for example/steps
Doc updates on hw32.h
step-3: start timestepping
Implement refinement/partition loop in step4
Some progress on step4
Work on node initialization
step-3: everything works except for stable coarsening.
Merge remote-tracking branch 'carsten/develop' into step-3

Conflicts:
	example/steps/Makefile.am
step-3: added to lint sources
step-3: encountered error, switch to full boundary layer until fixed.
implemented p4est_connectivity_reduce.
Use step1 as a starting point for step2
Have p4estindent find indent installed by Homebrew

On OS X the package manager Homebrew installs gnu-indent as gindent.
This change allows the p4estindent script to find gindent.
step-3: fix coarsening
Add functions for reading an ABAQUS .inp

Both GMSH and Cubit can generate ABAQUS .inp files.  These functions
presented here read the .inp files a build the associated connectivity.
Have step2 read an .inp file