This module facilitates the management of permissions, it allows you to exclude roles and modules from the management screen.
The management page uses ajax to load the relevant permissions, you have to select at least one role and at least one module, otherwise you don't get any results. Both roles and modules can be filtered to make the selection easier.
You can also filter the permissions before and after fetching them.
The code is a bit rough, but is working. It also doubles as a show case on how javascript can be used to improve the user experience.