some basic WAI handlers and middleware; profiling libraries

 wai is a common protocol for communication between web aplications and web
 servers.
 .
 This library provides some common features not tied to a particular web
 application or web server.
 .
 This package provides a library for the Haskell programming language, compiled
 for profiling. See http://www.haskell.org/ for more information on Haskell.