Merge pull request #90 from rjleveque/pytest

WIP: Using pytest instead of nose requires renaming to regression_test.py

Merge pull request #93 from rjleveque/run_tests

remove examples/run_tests.py and point to new common script in clawutil

Merge pull request #91 from ketch/meson_build

Add meson.build.

Merge pull request #89 from rjleveque/output_format

Modify src/Nd/outN.f to write out mbc,file_format in fort.t files

Merge pull request #89 from rjleveque/output_format

Modify src/Nd/outN.f to write out mbc,file_format in fort.t files

Merge pull request #88 from rjleveque/travis_noPy2

remove Python2 testing from travis

Merge pull request #88 from rjleveque/travis_noPy2

remove Python2 testing from travis

Merge pull request #88 from rjleveque/travis_noPy2

remove Python2 testing from travis

Merge pull request #87 from rjleveque/travis_python3

try python 3.6.10 for travis

Merge pull request #87 from rjleveque/travis_python3

try python 3.6.10 for travis