fixed tests to add setup and teardown to chdir into and out of directories  ... this common code should eventually be moved elsewhere
Merge pull request #80 from rjleveque/fix_tests

fixed tests so nosetests/travis works better?
Change data.py so flag_richardson==False prints out a negative value for the tolerance for Fortran code...
Eventually need to update flagging routines to include this as in 2d
changed flag2refine tolerance in euler_3d_radial.  Note that results do not look completely symmetric -- need to debug further?
Merge pull request #81 from rjleveque/fix_3d_flag_richardson

Fix 3d flag richardson
Removed gauges and regions sections from setrun.py for 3d examples -- not yet implemented
add num_dim as argument to RegionData and GaugeData to print error if num_dim==3...
Also need changes in clawpack/clawutil commit 263ad7415f3 to have num_dim passed in.
Need to modify visclaw eventually to pass in num_dim.
For now default is 2 to avoid needing to pass it in.
Merge pull request #82 from rjleveque/rm_3d_gauges_regions

Removed gauges and regions sections from setrun.py for 3d examples
Change over 2D AMRClaw code to use new Riemann function interface

Note that in this commit are changes to a routine for running in a 1D mode
using the 2D code, i.e. `rpn2from1d.f`.  It appears to never have been
converted to the permuted indices either.
Change over 3D code to new Riemann func interface
change examples/regression_tests.py so it does not die if some things fail
Added 3d regression test
added missing regression_data_test3.txt
fixed typos in flux3fw.f and qad.f as noted in PR #83
fixed typos in flux3.f for rp reordering
Merge branch '3d_test' into change-riemann-func-call-order-fixes

* 3d_test:
  added missing regression_data_test3.txt
  Added 3d regression test
  change examples/regression_tests.py so it does not die if some things fail
Merge pull request #85 from rjleveque/change-riemann-func-call-order-fixes

Change Riemann Function Interfaces - fixed
Errant comma in OMP directives destroyed