AssignedRolesTable

Hi,
these changes fix some problem encountered in User Role page ( /eden/org/organization/<id>/roles)during string translation  in Italian language. 
1.) In s3cfg.py file T function was not used for role list.
def get_auth_role_modules(self):
        """
            Which modules are included in the Role Manager
            - to assign discrete permissions to via UI
        """
        T = current.T
        return self.auth.get("role_modules", OrderedDict([
            ("staff", "Staff"),
            ("vol", "Volunteers"),
            ("member", "Members"),
            ("inv", "Warehouses"),
            ("asset", "Assets"),
            ("project", "Projects"),
            ("survey", "Assessments"),
            ("irs", "Incidents")
        ]))
changed with:
def get_auth_role_modules(self):
        """
            Which modules are included in the Role Manager
            - to assign discrete permissions to via UI
        """
        T = current.T
        return self.auth.get("role_modules", OrderedDict([
            ("staff", T("Staff")),
            ("vol", T("Volunteers")),
            ("member", T("Members")),
            ("inv", T("Warehouses")),
            ("asset", T("Assets")),
            ("project", T("Projects")),
            ("survey", T("Assessments")),
            ("irs", T("Incidents"))
        ]))
and
def get_auth_access_levels(self):
        """
            Access levels for the Role Manager UI
        """
        return self.auth.get("access_levels", OrderedDict([
            ("reader", "Reader"),
            ("data_entry", "Data Entry"),
            ("editor", "Editor"),
            ("super", "Super Editor")
        ]))
changed with:
    def get_auth_access_levels(self):
        """
            Access levels for the Role Manager UI
        """
		T = current.T
        return self.auth.get("access_levels", OrderedDict([
            ("reader", T("Reader")),
            ("data_entry", T("Data Entry")),
            ("editor", T("Editor")),
            ("super", T("Super Editor"))
        ]))
2.) In manage_roles.html file two strings were not translated.
rows
        <th>Module</th>
         <th>Access Level</th>
were changed with
          <th>{{=T("Module")}}</th>
          <th>{{=T("Access Level")}}</th>
3.) In it.py some strings were missing:
Access Level
Assign Roles
Assigned Roles
Branches
User Roles
Note:
it.py file has been enhanced providing more string translation.