* Due to a stray comma, returns view_id as a list of tuples of ids
(with a single tuple of a single id), should *at most* return a list
or tuple of ids
* If returning a view_id, pair it with a single view_mode (nobody I
asked was able to nail down the exact semantics for multiple
view_mode and a view_ids, so openerp-web accepts either multiple
view_mode or a view_id but not both)
lp bug: https://launchpad.net/bugs/879314 fixed
bzr revid: xmo@openerp.com-20111021103639-3zx71fu0qrt36zpg