custom timeouet for curl'ing upload urls

inc/config.php

@@ -355,6 +355,8 @@
 	// Allow "uploading" images via URL as well. Users can enter the URL of the image and then Tinyboard will
 	// download it. Not usually recommended.
 	$config['allow_upload_by_url'] = false;
+	// The timeout for the above, in seconds.
+	$config['upload_by_url_timeout'] = 15;
 
 	// A wordfilter (sometimes referred to as just a "filter" or "censor") automatically scans users’ posts
 	// as they are submitted and changes or censors particular words or phrases.