Add support to get an array of name_id_options

Author: Ana Martinez

lib/samlr/assertion.rb

@@ -51,6 +51,10 @@ def name_id
       @name_id ||= assertion.at("./saml:Subject/saml:NameID", NS_MAP).text
     end
 
+    def name_id_options
+      @name_id_options ||= Hash[assertion.at("./saml:Subject/saml:NameID", NS_MAP).attributes.map{|k,v| [k, v.value]}]
+    end
+
     def conditions
       @conditions ||= Condition.new(assertion.at("./saml:Conditions", NS_MAP), options)
     end

lib/samlr/response.rb

@@ -7,7 +7,7 @@ module Samlr
   class Response
     extend Forwardable
 
-    def_delegators :assertion, :name_id, :attributes
+    def_delegators :assertion, :name_id, :attributes, :name_id_options
     attr_reader :document, :options
 
     def initialize(data, options)