bulk clear/remove feedback messages

Currently only possible via the database.

Postponing on #323506: Allow to delete items

There is a mySql database associated with your site. In my case it's my hosting service user account followed by _drp1 (like acctc_drp1).
You can manage the db with phpMyAdmin or MySqlWorkbench. (My hosting provider, Bluehost, has phpMyAdmin in my control panel.)
Connect to the db (like acctc_drp1) with either application.
Once it's open, look for something like drp_feedback. The important part is "_feedback". Select it and it will open a page will the feedback entries.
Select browse. You can see all of the entries so you can bulk select and delete whatever you want.

I want to allow bulk deletion via views bulk operation.

#453820: Views integration, #323506: Allow to delete items, and #353548: Add trigger/action for e-mail notification each have to land first.

It looks like this still doesn't work.

I've enabled the view and added a views_bulk_operations field to it, set up to delete. When I go through the process, it tells me the correct number of items are deleted, but they are not.

I haven't dug down but my guess is that it's because feedback is stored in the feedback table and vbo intends to work on drupal objects?

This adds the missing deletion callback so Views bulk operations works w/ Feedback.

(A label callback would be nice so the confirmation page makes sense; also VBO should be able to change feedback status not just delete).

Anyone have a chance to review this one?

I will look at it either tomorrow or next week.

It looks good! Thanks mfb!