Set up basic testing framework with py.test

We're just testing that the about route works at all. We aren't even
testing that it does anything. But this represents wiring together a
bunch of things to get tests working including configuration
specifications, DB connections, table definitions, the app itself, etc

tests/api/test_about.py

@@ -0,0 +1,3 @@
+def test_about(client):
+    response = client.get('/about/')
+    assert response.status_code == 200