Update Not Found handler docblocks
Update Not Found handler docblocks

iinux/Slim,juliangut/Slim,samsonasik/Slim,RealSelf/Slim,slimphp/Slim,iinux/Slim,mnapoli/Slim,iinux/Slim,dopesong/Slim,pine3ree/Slim,AndrewCarterUK/Slim,akrabat/Slim,jaapverloop/Slim,designermonkey/Slim,Sam-Burns/Slim,feryardiant/slim,opengeek/Slim,somjit2514/basic,JoeBengalen/Slim,foxyantho/Slim