Minor data generation scripts issue

Hello there,

I was installing springtrader application onto a clean Ubuntu machine and noticed that the classes from Ant jars are needed by the SQL schema creation and data population groovy scripts. They were missing on the classpath for that scripts and failed with ClassNotFoundException. 
So I patched the startup scripts to include ant-1.8.3.jar and ant-launcher-1.8.3.jar which get packed into the DataGenerator.zip anyway. In this way its not needed to preinstall ant and update springtrader installation instructions with that requirement. 

Best Regards,
Sergey Shcherbakov