Add coverage reporting for RQ.

.travis.yml

@@ -9,6 +9,10 @@ python:
 install:
   - if [[ $TRAVIS_PYTHON_VERSION == 2.6 ]]; then pip install -r py26-requirements.txt; fi
   - pip install -r requirements.txt
+  - pip install pytest-cov --use-mirrors
+  - pip install coveralls --use-mirrors
   #- pip install pytest  # installed by Travis by default already
 script:
-  - py.test
+  - py.test --cov rq
+after_success:
+  - coveralls

README.md

@@ -5,6 +5,7 @@ easily.
 
 [![Build status](https://travis-ci.org/nvie/rq.svg?branch=master)](https://secure.travis-ci.org/nvie/rq)
 [![Can I Use Python 3?](https://caniusepython3.com/project/rq.svg)](https://caniusepython3.com/project/rq)
+[![Coverage Status](https://img.shields.io/coveralls/nvie/rq.svg)](https://coveralls.io/r/nvie/rq)
 
 
 ## Getting started