Match slashes in ../{id} resource routes

Match slashes in ../{id} resource routes

Fixes #2954

Before we could match on <prefix>/{id} however if the id contains a /
this would not match properly. But since we define the resource routes
internally we now make sure that we match all chars (up until the ?).

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>