If the matched rule is admin_ajax and $_SERVER['HTTP_REFERER'] isn't set, the user is trying to access the admin's ajax directly. Don't bother sending a callback to rescue form data because there can't be any. They'll just get redirected to login, as with all other admin pages. Fixes #753.
If the matched rule is admin_ajax and $_SERVER['HTTP_REFERER'] isn't set, the user is trying to access the admin's ajax directly. Don't bother sending a callback to rescue form data because there can't be any. They'll just get redirected to login, as with all other admin pages. Fixes #753.

git-svn-id: d0e296eae3c99886147898d36662a67893ae90b2@3284 653ae4dd-d31e-0410-96ef-6bf7bf53c507

dragonmantank/Habari,dragonmantank/Habari,dragonmantank/Habari