MINOR: Replaced usage of renamed classes with the new namespaced name. From: Sam Minnee <sam@silverstripe.com> git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/trunk@90076 467b73ca-7a2a-4603-9d3b-597d59a354a9
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/trunk@83970 467b73ca-7a2a-4603-9d3b-597d59a354a9