gem/oq-engine — pull request #1507 by micheles (2014-08-26 12:34:18+00:00)
Title: Remove task no

Having fixed the ordering problems in https://github.com/gem/oq-engine/pull/1506, now it it possible to remove the task_no and the useless order_by task_no.
Tests running here: https://ci.openquake.org/job/zdevel_oq-engine/594