[XSP] Clean up XSPWebSource, use modern features
[XSP] Clean up XSPWebSource, use modern features

murador/xsp,arthot/xsp,stormleoxia/xsp,murador/xsp,murador/xsp,arthot/xsp,stormleoxia/xsp,stormleoxia/xsp,stormleoxia/xsp,arthot/xsp,arthot/xsp,murador/xsp