adjust travis file to include only project source

.travis.yml

@@ -6,6 +6,6 @@ install:
     - pip install -r requirements.txt --use-mirrors
     - pip install coveralls --use-mirrors
 script:
-    - coverage run scorinator/manage.py test --settings=scorinator.settings.test
+    - coverage run --source=scorinator,worker --omit="*/tests/*" scorinator/manage.py test --settings=scorinator.settings.test
 after_success:
     - coveralls