keepsubdirs property: Fixed an issue with base directory and trailing slashes.  Changed how sub directories are created so that they can be useful.
keepsubdirs property: Fixed an issue with base directory and trailing slashes.  Changed how sub directories are created so that they can be useful.

cgourlay/nantcontrib,dahmage/nantcontrib,rmboggs/nantcontrib,cgourlay/nantcontrib,rmboggs/nantcontrib,nant/nantcontrib,cgourlay/nantcontrib,nant/nantcontrib,dahmage/nantcontrib,rmboggs/nantcontrib,nant/nantcontrib,dahmage/nantcontrib