Daemonise the Kibana process

* Daemonise the Kibana process from the startup script using the daemon
script that ships with Kibana.
* Install the daemons gem from the default recipe.
* Cleaned up some commented out stuff.
* Changed name of recipe in metadata.rb for some reason Vagrant with
 Berkshelf could not find the top level recipe otherwise.
Merge branch 'master' of github.com:jbrook/chef-kibana-ruby

Merged in pull request to tidy up platform vs platform_family.