Catch rpc up to the common state-of-the-art.
Catch rpc up to the common state-of-the-art.

This propagates the following patch from common into nova:

  Author: Jason Kölker <jason@koelker.net>
  Date:   Tue Jul 10 11:12:50 2012 -0500

      Fix Zmq so it doesn't rely on nova flags

      * Embeded newlines in logging makes me cry
      * String formatting uses parens not curly braces
      * Fix LP1023039
      * Hard skip Zmq tests so jenkins passes. Someone will have to fix.

Change-Id: I651aa10861cb26808fa46e74a7db545fb2fd23b8

n0ano/gantt,n0ano/gantt