fixing specs for older versions of ruby and rspec

spec/cancan/ability_spec.rb

@@ -242,6 +242,6 @@ describe CanCan::Ability do
   it "should has eated cheezburger" do
     lambda {
       @ability.can? :has, :cheezburger
-    }.should raise_exception(CanCan::Error, "Nom nom nom. I eated it.")
+    }.should raise_error(CanCan::Error, "Nom nom nom. I eated it.")
   end
 end

spec/matchers.rb

@@ -1,6 +1,6 @@
 Spec::Matchers.define :orderlessly_match do |original_string|
   match do |given_string|
-    original_string.bytes.sum == given_string.bytes.sum
+    original_string.split('').sort == given_string.split('').sort
   end
 
   failure_message_for_should do |given_string|