Add test to ensure that a named parameter is correctly url decoded.
Add test to ensure that a named parameter is correctly url decoded.

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