Revision 39967

  From Anar Manafov and me.
  Patch introducing support for the protocol "pod://" in TProof::Open to automatically
  address the entry point of the local PoD installation.
  Tha patch also fixes an issue with the string used to start a PROOF-Lite session. So far
  both "" and "lite" could be used; however this prevented the possibility to have a machine
  name "lite" on the local domain as PROOF master. With this patch we require users to
  specify "lite://" to start a PROOF-Lite session. A reminder is printed if "lite" is used
  and connection fails.
  The empty "" string uses the cluster specified by Proof.LocalDefault; by default the latter
  is "lite://", so the deafult behaviour of "" is unchanged.