add tests for legacy url with unknown format & parameters

- add missing feature tests for legacy urls like /index.php?sort_order=desc
Merge branch 'legacy_url' of https://github.com/zirni/alchemy_cms into zirni-legacy_url

Conflicts:
	spec/controllers/pages_controller_spec.rb
Convert legacy page redirection specs into Rspec 3 syntax
Convert attachments_controller spec stub into Rspec 3 syntax
Adds missing spec for redirecting legacy url with nested urlname
Merge branch 'zirni-legacy_url'