- the re-raising of exceptions ignored the "legal" exceptions
(the one used to early abort RPC calls and generate pop-ups)
- re-raising the exception was attempting to re-use the original
exception type but it does not always take only one argument
so it was breaking.
lp bug: https://launchpad.net/bugs/1146256 fixed
bzr revid: vmt@openerp.com-20130320132238-qzo3jptww59ndlch