Fix asynchronous support on windows platform, fix storage of responseDocument and add a sample service in Python language using the ZOO-API. Update makefile.vc and nmake.opt to remove unneeded cgic linkage. Fix for headers section to display only if needed.

git-svn-id: http://svn.zoo-project.org/svn/trunk@384 4b6b6ad6-68b3-4dcc-9231-bd9b83bc5dc3