R1:c50811137d69

Only show future triggers in Upcoming Triggers panel

Test Plan: Have one-off triggers, look in daemon console, don't see expired ones.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D16250