Use bracket-free, human-readable query URIs everywhere

Summary: See http://fab.wmflabs.org/T88. While this issue is on MW's side, these links are kind of ugly and have more readable alternate forms now. Update them to use proper modern forms.

Test Plan: See inlines.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D9042