Implemented WSF_RESPONSE.put_error (...) and related

Added WSF_RESPONSE.put_character
Renamed  WGI_OUTPUT_STREAM.put_character_8 as put_character  to follow style of put_string  (and not put_string_8)
Refactored the WSF_DEFAULT_SERVICE_LAUNCHER
Added WSF_DEFAULT_SERVICE to be more user friendly
Splitted the wsf/default/ libraries to have wsf/connector/... and being able to handle more than one connector in the same application

library/server/ewsgi/connectors/null/src/wgi_null_connector.e

@@ -14,9 +14,8 @@ create
 
 feature {NONE} -- Initialization
 
-	make (a_service: like service)
+	make
 		do
-			service := a_service
 		end
 
 feature -- Access
@@ -27,42 +26,14 @@ feature -- Access
 	Version: STRING_8 = "0.1"
 			-- Version of Current connector	
 
-feature {NONE} -- Access
-
-	service: WGI_SERVICE
-			-- Gateway Service			
-
 feature -- Execution
 
 	launch
-		local
-			req: WGI_REQUEST_FROM_TABLE
-			res: detachable WGI_RESPONSE_STREAM
-			rescued: BOOLEAN
 		do
-			if not rescued then
-				create req.make ((create {EXECUTION_ENVIRONMENT}).starting_environment_variables, create {WGI_NULL_INPUT_STREAM}.make, Current)
-				create res.make (create {WGI_NULL_OUTPUT_STREAM}.make)
-				service.execute (req, res)
-			else
-				if attached (create {EXCEPTION_MANAGER}).last_exception as e and then attached e.exception_trace as l_trace then
-					if res /= Void then
-						if not res.status_is_set then
-							res.set_status_code ({HTTP_STATUS_CODE}.internal_server_error)
-						end
-						if res.message_writable then
-							res.put_string ("<pre>" + l_trace + "</pre>")
-						end
-					end
-				end
-			end
-		rescue
-			rescued := True
-			retry
 		end
 
 note
-	copyright: "2011-2011, Eiffel Software and others"
+	copyright: "2011-2012, Eiffel Software and others"
 	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
 	source: "[
 			Eiffel Software