make a method in EnviromentConfiguration to test if newrelic is setup

app/controllers/publics_controller.rb

@@ -3,15 +3,13 @@
 #   the COPYRIGHT file.
 
 require File.join(Rails.root, 'lib', 'stream', 'public')
-require 'newrelic_rpm' if File.exists?(File.expand_path("#{Rails.root}/config/newrelic.yml", __FILE__))
-
 class PublicsController < ApplicationController
   require File.join(Rails.root, '/lib/diaspora/parser')
   require File.join(Rails.root, '/lib/postzord/receiver/public')
   require File.join(Rails.root, '/lib/postzord/receiver/private')
   include Diaspora::Parser
 
-  newrelic_ignore if File.exists?(File.expand_path("#{Rails.root}/config/newrelic.yml", __FILE__))
+  newrelic_ignore if EnviromentConfiguration.using_new_relic?
 
   skip_before_filter :set_header_data
   skip_before_filter :which_action_and_user

lib/enviroment_configuration.rb

@@ -36,4 +36,8 @@ module EnviromentConfiguration
       AppConfig[:ca_file]
     end
   end
+
+  def self.using_new_relic?
+    defined?(NewRelic) && AppConfig['NEW_RELIC_LICENSE_KEY'].present?
+  end
 end