Limit SQS message pulls to 10
Limit SQS message pulls to 10

* Bug reproduced by having a prefetch_multiplier and process
  count that multiply together to become greater than 10. This bug
  is on a per worker basis, and not a per instance basis.
* Fix: Anything greater than 10 gets floored to 10.
* Efficient work around this hard cap: Decrease process count per worker
  and add a new worker. Set process count and prefetch multiplier such that
  they multiply to 10.

iris-edu-int/kombu,alex/kombu,iris-edu-int/kombu,alex/kombu,bmbouter/kombu,numb3r3/kombu,tkanemoto/kombu,ZoranPavlovic/kombu,tkanemoto/kombu,Elastica/kombu,mverrilli/kombu,celery/kombu,jindongh/kombu,jindongh/kombu,Elastica/kombu,bmbouter/kombu,daevaorn/kombu,cce/kombu,urbn/kombu,daevaorn/kombu,cce/kombu,numb3r3/kombu,mverrilli/kombu,ZoranPavlovic/kombu