Remove AMQP hard-numbered dependancy, celery will already pull its own required version.

This crashed the 3.0 -> 3.1 migration...
Update celery settings to avoid a warning about pickle, and disable the now-useless GZIP compression.
Remove AMQP hard-numbered dependancy, celery will already pull its own required version.

This crashed the 3.0 -> 3.1 migration...
Update celery settings to avoid a warning about pickle, and disable the now-useless GZIP compression.
bump version for 0.26.4.2
Merge branch 'hotfix/0.26.4.2'
Merge branch 'hotfix/0.26.4.2' into develop
WOW. Picky Celery... When you say it will be disabled, don't serialize with it by default !!
WOW. Picky Celery... When you say it will be disabled, don't serialize with it by default !!
version bump for hotfix.
Merge branch 'hotfix/0.26.4.3'
Merge branch 'hotfix/0.26.4.3' into develop
Remove tornado from requirements, flower will pull whatever version it wants.
Remove tornado from requirements, flower will pull whatever version it wants.
version bump for hotfix.
Merge branch 'hotfix/0.26.4.4'
Merge branch 'hotfix/0.26.4.4' into develop
OMG. EncodeError: ObjectId('531b2387771103258894c572') is not JSON serializable. Thanks, whatever it is.
OMG. EncodeError: ObjectId('531b2387771103258894c572') is not JSON serializable. Thanks, whatever it is.
version bump for hotfix.