Add node metadata to history

Author: Chris Barbour

docs/history.rst

@@ -24,6 +24,7 @@ Version History
     - Address Python 2.6 incompatibility with the consulate cli and null data (#62, #61) - Wayne Walker
     - Added :class:`~consulate.api.lock.Lock` class for easier lock acquisition
     - New CLI feature to backup and restore ACLs (#71)
+    - Added support for node metadata in :class:`consulate.Consul.api.catalog` & :class:`~consulate.Comsul.api.health` 
 
  - 0.6.0 - released *2015-07-22*
   - Added --recurse and --trim to cli kv_get (#58) - Matt Walker