Adjust the default trusted_proxies to only include localhost, and allow other...

Adjust the default trusted_proxies to only include localhost, and allow other trusted proxies to be configured.

config/initializers/1_settings.rb

@@ -190,6 +190,7 @@ Settings.gitlab.default_projects_features['visibility_level']    = Settings.send
 Settings.gitlab['repository_downloads_path'] = File.join(Settings.shared['path'], 'cache/archive') if Settings.gitlab['repository_downloads_path'].nil?
 Settings.gitlab['restricted_signup_domains'] ||= []
 Settings.gitlab['import_sources'] ||= ['github','bitbucket','gitlab','gitorious','google_code','fogbugz','git']
+Settings.gitlab['trusted_proxies'] ||= []
 #

config/initializers/trusted_proxies.rb

+Rails.application.config.action_dispatch.trusted_proxies =
+  [ '127.0.0.1', '::1' ] + Array(Gitlab.config.gitlab.trusted_proxies)