adding Turnpike.md
extracting TPRouter docs
extracting TPRouteRequest.md
extracting RouteRequest
extracting TPAnonymousFilter
extracting TPFilterChain.md
working on RST-ifying docs
extracting route-request and router
restructuring docs
restructuring 'mapping routes', making 'getting started' be the index page
hiding the toc from main body
Merge branch 'master' of github.com:jlturner/Turnpike
Merge pull request #1 from andrewlook/master

doc refactor