Adding few more languages to the supported clients

Specific links to the relevant clients:

***Solr***
Erlang - https://github.com/lennart/esolr
Clojure - https://github.com/mlehman/solrclj
Java - http://wiki.apache.org/solr/Solrj
Go - https://github.com/rtt/Go-Solr
***Elastic search***
Java - http://www.elasticsearch.org/guide/en/elasticsearch/client/java-api/current/client.html
Go - https://github.com/mattbaird/elastigo