litle fix in utils trim

+ added 2 functions to check script output
+ created a html page with 4 forms for tests
+ created 2 cpp forms, with and without creating header content-length

default.config

@@ -21,7 +21,7 @@ server {
 
 	location /cgi-bin {
 		root ./srcs/cgi-bin/;
-		cgi_ext cpp php sh;
+		cgi_ext out php sh;
 	}
 
 	location /redirect {