New filter plugin "Advisor" and output "S3"

The filter Advisor is was designed for two important tasks.
The first job is to collect the events who match a grok word, store it in a buffer and release them after a time_adv time in event form. You can manipulate the result with another filter or with outputs, the result of work is signed by tags "advisor_data".
The second job is to generate other events who explain the number of event that match in time_adv time. Is useful if you want to know and manipulate information on outputs of particular events, they are signed by tags "advisor_info".
A good example is when you want to regard how much events matched after every time_adv and send via mail or sns the informations.

Output S3 (experimental)

An experimental example of s3 plugin. Enjoy it :)

This plugin was created for store the logstash's events into Amazon Simple Storage Service (Amazon S3).
For use it you needs authentications and an s3 bucket. 
Be careful to have the permission to write file on S3's bucket and run logstash with super user for establish connection.