Added a basic integration test so that we can see recommenders running

from local development

tests/test_integration.py

@@ -0,0 +1,18 @@
+import pytest
+from taar.context import default_context
+from taar import ProfileController, ProfileFetcher
+from taar import recommenders
+
+
+@pytest.mark.skip("This is an integration test")
+def test_recommenders(client_id='some_dev_client_id', branch='linear'):
+    root_ctx = default_context()
+    client = ProfileController('us-west-2', 'taar_addon_data_20180206')
+    pf = ProfileFetcher(client)
+    root_ctx['profile_fetcher'] = pf
+    r_factory = recommenders.RecommenderFactory(root_ctx.child())
+    root_ctx['recommender_factory'] = r_factory
+    rm = recommenders.RecommendationManager(root_ctx.child())
+    result = rm.recommend(client_id, limit=10, extra_data={'branch': branch})
+    print(result)
+    return result