Revert "Merge pull request #71 from grosser/grosser/cleanup"

This reverts commit 477ca17, reversing
changes made to 457b2c5.

Author: grosser

lib/openid/consumer/discovery.rb

@@ -55,6 +55,16 @@ def initialize
       @display_identifier = nil
     end
 
+    def serialize
+      instance_variables.map { |v| [v.to_s, instance_variable_get(v)] }
+    end
+
+    def self.deserialize(data)
+      instance = new
+      data.each { |k,v| instance.instance_variable_set(k,v) }
+      instance
+    end
+
     def display_identifier
       return @display_identifier if @display_identifier