Prepare release v0.19.0.0

Author: ruflin

changes.txt

@@ -2,6 +2,7 @@ CHANGES
 
 2012-03-04
 - Node info call update. The receive os info and more, param is needed. By default, only basics are returned
+- Release v0.19.0.0 which is compatible with ES 0.19.0 http://www.elasticsearch.org/blog/2012/03/01/0.19.0-released.html
 
 2012-02-21
 - Allow percolate queries in bulk requests