- enable registration sharing between SMT servers
  + At present SMT servers are stand alone entities. This change allows
    SMT servers to share registration data using the new
    acceptRegistrationSharing, shareRegistrations, and
    siblingCertDir options. SMT servers that share registrations MUST
    mirror the same channels or client updates will fail.
- update verification client example to provide the new interface
  verifySCCGuest
Merge pull request #1 from rjschwei/regShare

Registration shareing