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

examples/restbucksCRUD/src/restbucks_server.e

@@ -14,6 +14,8 @@ inherit
 
 	WSF_HANDLER_HELPER
 
+	WSF_DEFAULT_SERVICE
+
 create
 	make
 
@@ -24,9 +26,11 @@ feature {NONE} -- Initialization
 			s: WSF_DEFAULT_SERVICE_LAUNCHER
 		do
 			initialize_router
-			create s.make_and_launch_with_options (agent execute, <<["port", 9090]>>)
+			set_service_option ("port", 9090)
+			make_and_launch
 		end
 
+
 	create_router
 		do
 			create router.make (2)