Trying to fix coveralls integration

.travis.yml

@@ -2,6 +2,6 @@ language: python
 install:
   - "pip install ."
   - "pip install -r requirements.txt"
-script: py.test tests/ -v --cov haralyzer --cov-report term-missing
+script: py.test --cov haralyzer tests/
 after_success:
   - coveralls