added tests/bowl-slosh regression test checking gauge output only
improved regression tests based on changes to amrclaw tests
fixed Makefile in tests/bowl-slosh to amr2.f90
Added missing DART data file to chile2010 example and fixed READMEs to tell how to make topo
cleaned up chile2010/setplot*.py files
removed .data as dependency in make topo
changed regression_tests.py to include setup and teardown, modelled on amrclaw/tests
Added .travis.yml for Travis testing
fixed .travis.yml to change amrclaw to geoclaw -- copied before without being careful enough
Merge branch 'master' into regression
Merged riemann changes into new regression tests.

* master:
  Add compatibility with new Riemann func interface
Merge pull request #42 from rjleveque/regression

Regression