edit app+_config to look for heroku's ENV['STACK'] config var; load settings...

edit app+_config to look for heroku's ENV['STACK'] config var; load settings from ENV hash instead of application.yml if on heroku

app/models/app_config.rb

@@ -6,6 +6,8 @@ require 'uri'
 class AppConfig < Settingslogic
 
   def self.source_file_name
+    return ENV.to_hash if ENV["STACK"] # Using Heroku
+
     if Rails.env == 'test' || ENV["CI"] || Rails.env.include?("integration")
       File.join(Rails.root, "config", "application.yml.example")
     else
@@ -16,6 +18,7 @@ class AppConfig < Settingslogic
   namespace Rails.env
 
   def self.load!
+    unless ENV["STACK"]
       if no_config_file? && !have_old_config_file?
         $stderr.puts <<-HELP
 ******** You haven't set up your Diaspora settings file. **********
@@ -25,11 +28,11 @@ Please do the following:
 work without modification. However, it's always good to know what's available to change later.
 3. Restart Diaspora!
 ******** Thanks for being an alpha tester! **********
-HELP
+  HELP
         Process.exit(1)
       end
 
-    if (no_config_file? && have_old_config_file?) || config_file_is_old_style?
+      if ((no_config_file? && have_old_config_file?) || config_file_is_old_style?)
         $stderr.puts <<-HELP
 ******** The Diaspora configuration file format has changed. **********
 Please do the following:
@@ -38,9 +41,10 @@ Please do the following:
 3. Delete config/app.yml and config/app_config.yml. Don't worry if they don't exist, though.
 4. Restart Diaspora!
 ******** Thanks for being an alpha tester! **********
-HELP
+  HELP
         Process.exit(1)
       end
+    end
 
     begin
       super
@@ -50,7 +54,7 @@ HELP
       Process.exit(1)
     end
 
-    if no_cert_file_in_prod?
+    if !ENV["STACK"] && no_cert_file_in_prod?
       $stderr.puts <<-HELP
 ******** Diaspora does not know where your SSL-CA-Certificates file is. **********
   Please add the root certificate bundle (this is operating system specific) to application.yml. Defaults: