fixes #85: Emailed message of Password Reset Request

config/danbooru_default_config.rb

@@ -1,3 +1,5 @@
+require 'socket'
+
 module Danbooru
   class Configuration
     # The version of this Danbooru.
@@ -10,6 +12,11 @@ module Danbooru
       "Danbooru"
     end
     
+    # The hostname of the server.
+    def hostname
+      Socket.gethostname
+    end
+    
     # Contact email address of the admin.
     def contact_email
       "webmaster@#{server_host}"