[1.5.1] Correction to fix for TUSCANY-3193

[Simon Nash]

I found a problem with my fix for TUSCANY-3193.  In some cases the
host/port information was being added to bindings more than once,
producing URIs like
  http://localhost:8087localhost:8087/ShoppingCartComponent
instead of
  http://localhost:8087/ShoppingCartComponent

I have checked a fix into the 1.5.1 branch under revision r807024.

  Simon