This is the PSGI branch of WebGUI8

Currently, the best performance is achieved via:

 plackup -E none -s Starman --workers 10 --disable-keepalive
 
You can benchmark your server via:

 ab -t 3 -c 10 -k http://dev.localhost.localdomain:5000/ | grep Req
 
I'm currently getting 370 requests/second, whereas I'm getting 430/second on the non-PSGI WebGUI8 branch.

= ARCHITECTURE =

* The .psgi file gets to set WEBGUI_ROOT and WEBGUI_CONFIG.
* It instantiates the $wg WebGUI object (one per app).
* $wg creates and stores the WebGUI::Config (one per app)
* $wg creates the $app PSGI app code ref (one per app)
* WebGUI::Middleware::Session is wrapped around $app at the outer-most layer so that it can open and
  close the $session WebGUI::Session. Any other wG middleware that needs $session should go in between
  it and $app ($session created one per request)
* $session creates the $request WebGUI::Session::Request and $response WebGUI::Session::Response 
  objects (one per request)