Users should be able to view the status of checklists even if they can't change them

Issue Summary

Currently, it seems that the "loadall" function can only be accessed by users with 'update ajax checklists' permission (as defined in the 'ajax_checklist_menu' function in ajax_checklist.module)

This means that a user which can't update checklists (say, an anonymous user) can't even see the current status of a checklist.

The plan would be something like:

• Add a new permission: 'view checklist status'
• Allow users with one of these permissions ('view checklist status' or 'update ajax checklists') to run 'ajax_checklist_loadall'

Obviously this applies only to "global" checkboxes.

I'll submit a patch if I end up implementing this.