Description of problem:
Celery 3.1.15 is out[0]. Pulp currently ships 3.1.11. We should update master to the latest Celery that will work with Pulp.

Version-Release number of selected component (if applicable):
master

How reproducible:
Every time

Steps to Reproduce:
1. rpm -q python-celery

Actual results:
[rbarlow@notepad]~% rpm -q python-celery 
python-celery-3.1.11-1.el6.noarch

Expected results:
At least this version or greater:

[rbarlow@notepad]~% rpm -q python-celery 
python-celery-3.1.15-1.el6.noarch

Additional info:
[0] http://docs.celeryproject.org/en/latest/changelog.html#version-3-1-15