Avoid errors on signals when the engine is run through the server
Simplified two queries
Added a register_handlers function
Added terminate_job_when_celery_is_down functionality
Improved a comment
Small fix
Added a timeout to the celery ping
Merge pull request #1416 from gem/fix-server-signal

Avoid errors on signals when the engine is run through the server
Fixed a bug with celery ping
Merge pull request #1418 from gem/fix-server-signal

Fixed a bug with celery ping
Merge branch 'master' of github.com:gem/oq-engine into getter-builder
Added a limit on the size of the epsilon matrices