Adjust rule priorities to deal with links to object names correctly

Summary: Ref T5645. The object rules got juggled to deal with some other issues, so these rules currently fire too late for `[[ http://... | T25 ]]`, as the object rule hits `T25` first.

Test Plan: Got correct render out of `[[ http://... | T25 ]]`.

Reviewers: btrahan, joshuaspence

Reviewed By: joshuaspence

Subscribers: epriestley

Maniphest Tasks: T5645

Differential Revision: https://secure.phabricator.com/D9964