New plugins proposed

There are 2 more plugins we use in production in our company;
* elasticsearch plugin for query execution time monitoring. 
    - ElasticSearch (http://www.elasticsearch.org/) has a good API, so I just do HTTP query "get all" and parse its execution time from the response (note, that ES can cache the query, but that is not a problem since if we have general slowness, then even cached queries are slow)
* storm topology processed items plugin
    - Storm (https://github.com/nathanmarz/storm) doesn't have API, so the only way to be informed that's going on, is to parse data from it's web interface.