- Error handlers have been simplified, handlers don't returns functions anymore and take 3 params: env, uncaughtError and originalError. - Source maps have been reintroduced. - The original error message and name are now concatenated to the "wrapper" error ones. closes odoo-dev/odoo#895 Related: odoo-dev/enterprise#154 Signed-off-by: Géry Debongnie (ged) <ged@openerp.com>