Fix verify_authenticity_token to be class method
Fix verify_authenticity_token to be class method

autolab/Autolab,autolab/Autolab,autolab/Autolab,autolab/Autolab,cg2v/Autolab,cg2v/Autolab,autolab/Autolab,cg2v/Autolab,cg2v/Autolab,cg2v/Autolab,autolab/Autolab,cg2v/Autolab