changed/added license heading. Moved some json files to yaml

Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/database_utils/host_ranking.sql b/database_utils/host_ranking.sql
index 5e229bf..d522613 100644
--- a/database_utils/host_ranking.sql
+++ b/database_utils/host_ranking.sql
@@ -1,7 +1,7 @@
 /*
 ##
 # Copyright 2015 Telefónica Investigación y Desarrollo, S.A.U.
-# This file is part of openmano
+# This file is part of openvim
 # All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License"); you may