[Openib-windows] New CM implementation in fab_cm_branch

[Sean Hefty]

>- DAPLtest seems to have some issues.  Not sure why, but the server can't
>perform multiple runs of a test, and hangs after the second run.
>Connection
>attempts beyond the second run timeout.

We saw a similar issue with the Linux stack, and the problem was that kDAPL
wasn't cleaning up the cm_id that it used to listen on at the end of a run.
Not sure if this is related or not...

- Sean