Return route config settings from introspec

[wwwlicious]

there are settings in the apphost configuration which affect how requests are handled such as

http://docs.servicestack.net/routing#content-negotiation
config.AllowRouteContentTypeExtensions (.[xml|jsv|csv|json]on urls)

Also the auto route generation strategies need to be considered
http://docs.servicestack.net/routing#auto-route-generation-strategies

And routes can be added dynamically
http://docs.servicestack.net/routing#dynamically-adding-route-attributes

And IUrlFilter
http://docs.servicestack.net/routing#customize-urls-used-with-iurlfilter