chore(controller): update South to 1.0.1

See http://south.readthedocs.org/en/latest/releasenotes/1.0.1.html
and https://bitbucket.org/andrewgodwin/south/commits/tag/1.0.1

Author: mboersma

requirements.txt

@@ -18,4 +18,4 @@ python-etcd==0.3.2
 PyYAML==3.11
 redis==2.9.1
 static==1.0.2
-South==1.0
+South==1.0.1