Fix some tests failing with docker 1.1.2 and add a comment to recreate_container() explaining what it does.

Signed-off-by: Daniel Nephin <dnephin@gmail.com>

fig/service.py

@@ -200,6 +200,10 @@ class Service(object):
             return tuples
 
     def recreate_container(self, container, **override_options):
+        """Recreate a container. An intermediate container is created so that
+        the new container has the same name, while still supporting
+        `volumes-from` the original container.
+        """
         try:
             container.stop()
         except APIError as e: