fixed examples/*/setrun.py so comments give correct limiters...
Changed limiter used for some examples to match previous 4.x choices
modified examples/*/setplot.py to use new JSAnimation for movies...
based on clawpack/visclaw#72.
Merge pull request #61 from rjleveque/fix-limiter

Fix limiter
changed comment on alternate html_movie='4.x'
compute cflmax in a different place
Merge pull request #62 from rjleveque/cflmax

compute clfmax in different place and html_movie='4.x'
Add read override to RegionData
Merge pull request #63 from mandli/add-read-regiondata

Add `read` function override for `RegionData` object
Removed maxmx, maxmy from calling sequences - seems to work but not yet fully tested.
Bug fix for data file closing
fixed call to setaux with maxmx arguments
notes on what was changed to eliminate maxmx and maxmy
removed tests/swirl: was out of date and not yet working as regression test
Created dev/tests directory for regression codes, not yet working
new version of fix_maxmx_notes.txt
Merge pull request #67 from rjleveque/maxmx

Removed maxmx and maxmy from calling sequences in 2d code
Added regression test in tests/advection_2d_square that checks sum of t and q at two gauges
Added tests/advection_2d_annulus
Added tests/acoustics_2d_radial
Added regression_tests.py to examples/advection_2d_square:  compares to gallery version...
See comments in file.
Also fixed bugs in clawpack/clawutil/src/python/clawutil/imagediff.py
on branch regression_imagediff