* Added rewrite rule for removing "supplemental" url elements to docs.yaml

* Rewrite 'whatsNew.html' refs.

Author: stamhankar999

docs.yaml

@@ -18,6 +18,8 @@ sections:
 rewrites:
   - api/: api/cassandra/
   - cassandra/cassandra: cassandra
+  - supplemental/: /
+  - en/latest-ruby-driver/ruby-driver/whatsNew.html: en/developer/ruby-driver/latest
   - 'trunk/doc/native_protocol_v([12])\.spec': cassandra-2.2/doc/native_protocol_v\1.spec
   - search: http://www.datastax.com/documentation/cql/3.1/webhelp/index.html
     replace: http://docs.datastax.com/en/cql/3.3/cql/cql_using/useAboutCQL.html