Merge branch 'hotfix/Config_problems'
Merge branch 'release/release-1.14.1'
Merge branch 'release/1.15.00'
Add celery config object.
Convert celery to read config from an object.
Add example config_celery file.
Huh?
Add celery module on its own so that it can be imported into other modules that need queueing.
Change sms and email handlers so that they now import the single celery instance that we have instantiated in bb_celery module.
Merge branch 'hotfix/1.15.01' into develop