allow custom app_name prefixes for newrelic

app/models/app_config.rb

@@ -94,6 +94,10 @@ HELP
     File.exists?(File.join(Rails.root, "config", "app.yml")) || (File.exists?(File.join(Rails.root, "config", "app_config.yml")))
   end
 
+  def self.new_relic_app_name
+    self[:new_relic_app_name] || self[:pod_uri].host
+  end
+
   def self.normalize_pod_url
     unless self[:pod_url] =~ /^(https?:\/\/)/ # starts with http:// or https://
       self[:pod_url] = "http://#{self[:pod_url]}"

config/application.yml.example

@@ -114,7 +114,7 @@ defaults: &defaults
   # Miscellaneous
 
   NEW_RELIC_LICENSE_KEY: ''
-
+  new_relic_app_name: ''
 
   # If set to true Diaspora will work with just the appserver, thin by default,
   # running, however this makes it quite slow as all the time intensive jobs

config/newrelic.yml

@@ -33,7 +33,7 @@ common: &default_settings
   # "All UI" then specify a semicolon-separated list of up to three
   # distinct names.  If you comment this out, it defaults to the 
   # capitalized RAILS_ENV (i.e., Production, Staging, etc)
-  app_name: <%= AppConfig[:pod_uri].host%>
+  app_name: <%= AppConfig.new_relic_app_name %>
 
   # When "true", the agent collects performance data about your 
   # application and reports this data to the New Relic service at