add rubygems

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk/contrib@15779 d0543943-73ff-0310-b7d9-9358b9ac24b2

diegoviola/ruby/cdr/database.rb

+require 'rubygems'
 require 'sequel'
 
 DB = Sequel.connect('mysql://root@localhost/freeswitch')