remove 'run-tests.sh' as unnecessary; just run `tox` or `py.test`
remove 'run-tests.sh' as unnecessary; just run `tox` or `py.test`

To run tox on specific versions of python, you can use the -e option:
$ tox -e py27
$ tox -e py35

To only run tests which match the given substring expression, use
py.test -k option. Do `py.test -h` for more info.

fonttools/fonttools,googlefonts/fonttools