…egates not thread safe"
'params' and 'urlparams' are not thread safe. If a second request comes into a request handler while the previous one is still processing, the value of 'params' and 'urlparams' are replaced in the namespace of the original request. The fix is to clone the request handler closure before setting the delegate, thus creating a localized namespace. This will impart a small performance hit
… NPE if the route doesn't exist. Sample app throws NPE for favicon.ico which isn't included by default.