[katello] pipeline maintainer sign-up sheet

Katello devs,

I added 15 additional dates to
http://pad-katello.rhcloud.com/p/bats-batting-order, since we are
approaching the end of the bats roster (currently oct 31, scary!)

If you are interested in keeping an eye on the katello pipeline for a
two week period, please sign up. Your role would be to check once a day
that the pipeline is green, and if it did not pass, either fix the issue
or debug and raise the issue to someone else.