[FastCGI] Clean up ResponderRequest, use modern features
[FastCGI] Clean up ResponderRequest, use modern features

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