Overriding app.config in unittest.

We may need something better structured in the future to handle
test configuration, but at least this gets the one test we have
running.

tests/test_auth.py

@@ -17,6 +17,8 @@ os.environ['EVE_SETTINGS'] = os.path.join(
 from application import app
 from application.utils import authentication as auth
 
+app.config['BLENDER_ID_ENDPOINT'] = BLENDER_ID_ENDPOINT
+
 
 def make_header(username, password=''):
     """Returns a Basic HTTP Authentication header value."""