-r common.txt

coverage
setuptools-pep8
sphinx
sphinx-rtd-theme
coveralls
flake8
git+https://github.com/dcramer/piplint.git#egg=piplint

-r common.txt

coverage
setuptools-pep8
sphinx
sphinx-rtd-theme
coveralls
flake8
-e git+https://github.com/dcramer/piplint.git#egg=piplint

Fix missing requirement for coverage.
Fix missing requirement for coverage.

The requirement in testing.txt is now installed correctly with the -e option.
