add support to ignore certain request

the amount of GET requests may create a large amount of traffic
on the notification bus. users may want the ability to ignore GET
(or other) requests to alleviate the load if requests are not of
interest. adding an ignore_req_list filter option to accommodate
this.

Change-Id: I840c43bf3fcaca28dd20cdf9b8c0787fce732f69
Remove obsolete redhat-eventlet.patch

The gorey details for why this exists is in the commit message for
commit 3c132c0.

As of this fix:

  https://github.com/eventlet/eventlet/pull/34

which was released in eventlet 0.13, we no longer need the patch.

Change-Id: I84267f3c6726cb2e750f615e107c48b12c6ed353
Merge "Remove obsolete redhat-eventlet.patch"
Merge "add support to ignore certain request"