Check the uniqueness of the service name ignoring case.

When the service name changes the email_from changes to.
Renamed find_all_service_names to find_all_service_names_lower.

tests/__init__.py

@@ -10,8 +10,9 @@ class TestClient(FlaskClient):
         with self.session_transaction() as session:
             session['user_id'] = user.id
             session['_fresh'] = True
-        if mocker and service:
+        if mocker:
             mocker.patch('app.user_api_client.get_user', return_value=user)
+        if mocker and service:
             mocker.patch('app.service_api_client.get_service', return_value={'data': service})
         login_user(user, remember=True)