[FIX] add active_id, active_ids and active_model to context send when fetching...

[FIX] add active_id, active_ids and active_model to context send when fetching m2o widget values in forms

lp bug: https://launchpad.net/bugs/878189 fixed

bzr revid: xmo@openerp.com-20111115105809-phttoirkmq4rzd1w