Added the class method 'get_max_weight' to Node entity: it can be used to get the highest value of Node.weight.
Added the class method 'get_max_weight' to Node entity:
it can be used to get the highest value of Node.weight.

--HG--
extra : convert_revision : s.fontanelli%40asidev.com-20110904161548-4is06zj5p5fj1f5i

asidev/aybu-website