xcodebuild questions

I have upgraded XCode from 2.0 to 2.4 and WO from 5.2.4 to 5.3 and am 
having some trouble with the xcodebuild.

It works fine for most apps using:
xcodebuild install -configuration WebServer DSTROOT=/

Could anyone tell me where the name WebServer comes from, the XCode man 
page says it is the "configurationname" but I am not clear what that is or 
what other options there might be for it.

For a Java Client app, although it builds fine within the XCode gui, I 
can't get a successful installation build using xcodebuild. Is there a way 
to see what the XCode gui is doing (calling xcodebuild under the hood perhaps)?

If I try:
xcodebuild install -configuration Deployment DSTROOT=/
on the Java Client app, the build fails to resolve symbols for classes that 
are within the same package (but different directories) within the same 
project (both classes on the client side).

Thanks for any pointers,
John