Change aux file read error message to debug level.
Merge pull request #422 from ketch/aux_file_message

Change aux file read error message to debug level.
Update CHANGES file for 5.2.

Also add more detailed documentation of new timesteppers.
Fix #426 (writing aux with PETSc leads to empty q file).
Merge pull request #425 from ketch/update_changes

Update CHANGES file for 5.2.
PyWENO: Update weno.py to match current PyWENO release.
Merge pull request #429 from memmett/memmett-pyweno

PyWENO: Update weno.py to match current PyWENO release.
Create shocktube.py

Example script for the 3D Euler equations with dimensional splitting.
This example solves a 1D shocktube problem in a 3D domain.
Create Sedov.py

This is an example script for the 3D Euler equations with dimensional splitting.
A fully 3D Sedov blast problem is solved.
Eliminate q_or_aux variable.

Fix petclaw/io/petsc.py: write_aux -> read_aux
Update version of hashdist that we rely on.
Merge pull request #432 from ketch/update_hashdist

Update version of hashdist that we rely on.
Make 3D acoustics tests run faster by using smaller grid.
Make psystem_2d tests run faster by using shorter time and smaller grid.
Modify acoustics 2d variable test to be shorter

Also add specific regression data for classic and sharpclaw.  This was needed
since we now use a much coarser grid.
More description of test parameters.
Merge pull request #431 from mandli/short-tests

Short tests
Merge pull request #427 from ketch/bugfix_write_aux

Fix #426 (writing aux with PETSc leads to empty q file).
hdf5 reader working (barely).
First attempt to use coveralls.io.