Remove the reaper initialization call, since the reaper does not initialize.
Mention that Celery needs to be installed from pip from now.
Merge branch 'rbarlow-update_readme' into distributed-tasks
Merge pull request #740 from pulp/mhrivnak-mongobackend

using mongodb as the results backend for celery
WIP
Merge branch 'distributed-tasks' into mhrivnak-sched
tests