Fixed a problem in the new trade window implementation (from r11830) where no trade acknowledgement messages would get sent (bugreport:1217).
Fixed a problem in the new trade window implementation (from r11830) where no trade acknowledgement messages would get sent (bugreport:1217).

git-svn-id: c1e39603916b71782cde5facdf0b79eff05c1414@12427 54d463be-8e91-2dee-dedb-b68131a5f0ec

Nipol/Siesta,Nipol/Siesta,Nipol/Siesta