Added 'requests' logger

This is in the upstream stable/grizzly branch.

Change-Id: Ic2fb7f641eaf482f1763a7eab9ba53987876e3de
Removed old swift settings

The SWIFT_ENABLED and SWIFT_PAGINATE_LIMIT settings look to no
longer be necessary.
  emopop:horizon(stable/grizzly)% ack SWIFT_ENABLED
  emopop:horizon(stable/grizzly)%

Change-Id: I5dfbe69159a20c6187efb6d1556d45d643f55db5
Merge "Removed old swift settings"