Renamed "ext" folder as "contrib" folder and reorganized a little bit

Renamed any *_APPLICATION as *_SERVICE
   mainly because those components
   such as WSF_APPLICATION, renamed as WSF_SERVICE
   are not always the main application entry, and "service" describe them better
Minor implementation change in WSF_REQUEST
Cosmetics

library/server/wsf/src/wsf_service.e

@@ -0,0 +1,36 @@
+note
+	description: "[
+		Inherit from this class to implement the main entry of your web service
+		You just need to implement `execute', get data from the request `req'
+		and write the response in `res'
+	]"
+	date: "$Date$"
+	revision: "$Revision$"
+
+deferred class
+	WSF_SERVICE
+
+inherit
+	WGI_SERVICE
+		rename
+			execute as wgi_execute
+		end
+
+feature -- Execution
+
+	execute (req: WSF_REQUEST; res: WSF_RESPONSE)
+			-- Execute the request
+			-- See `req.input' for input stream
+    		--     `req.meta_variables' for the CGI meta variable
+			-- and `res' for output buffer
+		deferred
+		end
+
+feature -- WGI Execution
+
+	wgi_execute (req: WGI_REQUEST; res: WGI_RESPONSE_BUFFER)
+		do
+			execute (create {WSF_REQUEST}.make_from_wgi (req), create {WSF_RESPONSE}.make_from_wgi (res))
+		end
+
+end