Update logstash.init

Adding support for filterworkers
Update logstash.wrapper

Adding support for filterworkers
Update logstash.sysconfig

Adding support for filterworkers
Merge pull request #19 from kakbit/master

Adding support for filterworkers in sysconfig
Merge branch 'master' of https://github.com/lfrancke/logstash-rpm
Upgrade to final of Kibana 3.0.0