Collective.impersonate 1.2 released

Nejc's has been so useful for debugging permission/role/security issues even on live sites.

I've added a page of user documentation and screenshots, along with a personal menu item that takes a Manager to the @@impersonate form.


collective.impersonate 1.2 now respects the “Many users” checkbox under the Users and Groups settings tab, so it avoids trying to list all the site users.