Doesn't run, goes into infinite loop for imports with URL schemaLocation

[relaxnow]

I tried to run this on the SAML2 spec ([http://docs.oasis-open.org/security/saml/v2.0/saml-2.0-os.zip]) but the code seems to produce a fatal error on an undefined variable in the XSL file and it goes into an infinite loop (using Gbs of memory) when encountering an import when a URL in the schemaLocation.
These problems are fixed in the fork.

After fixing this the SAML2 classes still have issues with the namespace and classdefinition.