Merge pull request #1321 from gem/supervisor-dont-kill

Removed the supervisor, redis, kombu and related stuff
Merge branch 'master' of github.com:gem/oq-engine into no-supervisor
Committed the missing grant file
Merge pull request #1322 from gem/no-supervisor

Removed the rest of the stuff related to the supervisor
Merge branch 'master' of github.com:gem/oq-engine into remove-ltrealization