Test runner with coverage
A replacement test runner which outputs a coverage report after the tests. Simply change your ``TEST_RUNNER`` setting to point to ``run_tests_with_coverage`` and you're good to go. Note that 'as-is' this snippet reports the coverage of all modules underneath the app, by walking the directory tree and loading all of the .py modules (this may be a naive approach). If you change it to use `get_coverage_modules()` instead, it will only display the coverage of modules that have been imported by the test suite, using the Python `inspect` lib, which may be more reliable. Uses [coverage.py](http://nedbatchelder.com/code/modules/coverage.html). Based on ideas from: [1](http://www.thoughtspark.org/node/6), [2](http://blogs.23.nu/c0re/stories/15428/) and [3](http://siddhi.blogspot.com/2007/04/code-coverage-for-your-django-code.html)
- test
- runner
- coverage