gem/oq-engine — pull request #1402 by nastasi-oq (2014-04-03 07:43:56+00:00)
Title: Celery check

Manage in a more consistent way when celery hasn't started yet.
Oq-engine now return exitcode 2 when celery nodes are not recognized.
Tests passed: https://ci.openquake.org/job/zdevel_oq-engine/351/