Added reCAPTCHA (still needs some testing), updated links (finally), fixed one more invalid token error, fix very minor "exploit"

git-svn-id: http://kusabax.cultnet.net/svn/repo/stable@306 73d99b7e-4f53-4972-b7b7-2ecd3c4d89ee

config.php

@@ -189,7 +189,7 @@ if (!$cache_loaded) {
 		$cf['KU_DEBUG'] = false; // When enabled, debug information will be printed (Warning: all queries will be shown publicly)
 
 	// Post-configuration actions, don't modify these
-		$cf['KU_VERSION']    = '0.9';
+		$cf['KU_VERSION']    = '0.9.3';
 		$cf['KU_TAGS']       = serialize($cf['KU_TAGS']);
 		$cf['KU_TRIPS']      = serialize($cf['KU_TRIPS']);
 		$cf['KU_LINELENGTH'] = $cf['KU_LINELENGTH'] * 15;