Fixed all calls to String#to_a for Ruby 1.9 compatibility.
Fixed all calls to String#to_a for Ruby 1.9 compatibility.

* Works in both Ruby 1.8 and Ruby 1.9.
* This is the same problem the "RabbitMQ Queue Details" plugin had.
pingdomserver/scout-plugins,scoutapp/scout-plugins,skiold/scout-plugins,pingdomserver/scout-plugins,scoutapp/scout-plugins,wenyanw/scout-plugins,pap/scout-plugins,envato/scout-plugins,pingdomserver/scout-plugins,envato/scout-plugins,envato/scout-plugins,pap/scout-plugins,pap/scout-plugins,skiold/scout-plugins,skiold/scout-plugins,wenyanw/scout-plugins,wenyanw/scout-plugins,scoutapp/scout-plugins