Link ticket difference to a query on make/core components page

[iseulde]

That would make it easier to see which tickets exactly have been opened in the last 7 days.
​https://make.wordpress.org/core/components/

[samuelsidler]

Code should be here, for anyone interested: https://meta.trac.wordpress.org/browser/sites/trunk/wordpress.org/public_html/wp-content/plugins/trac-notifications/trac-components.php

[obenland]

In 6670:

Components: Link to recently opened tickets.

Fixes #836..