Code review comment for lp:~kfogel/launchpad/506018-patch-report

With Abel, add a "+patches" view based on IHasBugs.

The patch report lists bugtasks -- for bugs that have patch attachments -- on products, series, and packages. The listing can be sorted by importance, status, and bug age. (Sorting on patch age is not yet implemented, and will be done a separate branch. Likewise, the patch report for persons/teams is not yet implemented, and will be a separate branch.)

To review, load new sampledata from http://people.canonical.com/~kfogel/506018/newsampledata-dev.sql.gz . Then visit pages like these:

  https://bugs.launchpad.dev/patches-view-test/+patches
  https://bugs.launchpad.dev/firefox/+patches
  https://launchpad.dev/ubuntu/+patches
  https://bugs.launchpad.dev/ubuntu/+source/cdrkit/+patches