merged up to rev 9212 from main, and updated recon/reflow/reTurn with our changes from the past cycle

note that the recon/reflow/reTurn on this branch is completely out of sync with main; it does not include the sipXmedia dependencies, nor does it include any other media stack, however it does provide interfaces that you can implement so as to plug in your own media stack

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/cp-recon-contrib-20100125@9213 ddefafc4-47db-0310-ae44-fa13212b10f2