Diff Quality

@sarina and @peter-fogg added support for code quality checking in diff-cover.

The branch: https://github.com/edx/diff-cover/tree/quality-violations The Pull Request https://github.com/edx/diff-cover/pull/22

Usage of diff-quality is similar to that of diff-cover (see the README for more details). The report format is modified to include line numbers and error messages from the checker. Currently only pylint and pep8 are supported; however, it should be quite easy to add support for additional style checkers (jslint? coffeelint?).