Wrong permission name in hook_menu

First, this is an awesome concept, thanks for building it.

Quick thing I notice -- hook_perm defines an 'administer quant' permission, but hook_menu checks 'administer site quant' for admin/settings/quant - result being, no one (or only user 1) can access the settings.
Attached patch fixes it. (Clear your menu cache after applying to make it stick.)