sprinkle-uf-tweaks

Fixes/tweaks a few "issues" with the default UserFrosting installation, including:

Removes the uri_dashboard permission from 'users' role
Adds the uri_dashboard permission to the site-admin and group-admin roles
Restructures the dashboard to be more role-friendly
Fixes the authenticator generating 'PHP Notice's (parameter to count() must be an array)
Don't send the user to the account settings on login, send them to the index instead
Adds a user creation button to the group admin page
Fixes showing user activity depending on the current user's permission to view it
Allow site-admins to view roles & permissions
Allow site-admins to edit basic role details (name, slug & description)
Added 'hasRole' twig function to check if a user has a role (if a role doesn't exist, always returns false)
Added 'Auditer' role and split the activities permission away from site-admins (exclusive only) and everyone else