General fixes and PEP8 enforcement (#258)

* Fixing index page links when you deploy on a subdirectory

* Updating travis for pep8

* autopep8 with just formatting changes

tests/test_admin_facing.py

@@ -73,4 +73,4 @@ def test_admin_config():
     with app.app_context():
         client = login_as_user(app, name="admin", password="password")
         r = client.get('/admin/config')
-        assert r.status_code == 200
+        assert r.status_code == 200