* add 'daemonsPorts' and related constants used in the construction of
  the 'Map' that maps each daemon to its corresponding protocol and
  port.  This breaks constant 'daemonsPortsGanetiNoded' which is
  automatically generated from the Python dictionary 'DAEMONS_PORTS'

* replace reference from constant 'daemonsPortsGanetiNoded' to
  'defaultNodedPort' because constant 'daemonsPortsGanetiNoded' was a
  tuple containing the protocol and the port for node daemon, but only
  the port was needed.  And because this tuple was making Haskell to
  Python constant generation more difficult, it is preferable to
  replace this tuple with the actual port and use it directly, in
  module 'Ganeti.Rpc'

Signed-off-by: Jose A. Lopes <jabolopes@google.com>
Reviewed-by: Klaus Aehlig <aehlig@google.com>