Reduce dependency on headers
Add basic doxygen system
Check for sc submodule in bootstrap
Update libsc
Remove examples sieve and second
Start example/steps/p4est_step1
Finish example step1
Tweaks to p4est_step1
Text updates
copy step1 to step3 to start
saving start of step3
mesh: add p4est_mesh_face_neighbor_data
README updates
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