Replace HomeSettings with Presence Model class. Replace SiteSettings with Site Model class. Derive Group Model class from Presence, adding the "home page settings" properties in a Melange site presence to every Group. Patch by: Todd Larsen

import os, sys
sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
import pkg_resources
pkg_resources.require('WebOb')