Generate coverage on Scrutinizer

Signed-off-by: Michal Čihař <michal@cihar.com>

.scrutinizer.yml

@@ -15,13 +15,13 @@ before_commands:
 build:
     dependencies:
         before:
-            - pip install Django Whoosh translate-toolkit lxml Pillow six python-dateutil python-social-auth django-crispy-forms oauthlib django_compressor
+            - pip install Django Whoosh translate-toolkit lxml Pillow six python-dateutil python-social-auth django-crispy-forms oauthlib django_compressor coverage
         override:
             - true
     tests:
         override:
             -
-                command: ./manage.py test --settings=weblate.settings_test
+                command: coverage run --source . ./manage.py test --settings=weblate.settings_test
                 coverage:
                     file: .coverage
                     format: py-cc