copy step1 to step3 to start
saving start of step3
step-3: initial refinement, coarsening, and vtk
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.
step-3: fix coarsening
step-3: doxygenated
step-3: inden
Fix typo
Merge remote-tracking branch 'toby/step-3' into develop
Merge remote-tracking branch 'lcwhub/step-2' into develop
Merge initial work on step4
Fix some warnings
Update libsc