v3.0.5 code review: lots of small fixes and cleanup

- fixed nano selection in search form
- removed unused, duplicate thumb replacement pics
- freed mysql result in lib1 helppage-link generation
- fixed logpic-is-on-first-page calculation
- fixed and improved user option set handling
- readded map dragzoom
- improved log pic pages layout
- user pics page counter fix

htdocs/lib2/common.inc.php

@@ -317,7 +317,7 @@ function fix_magic_quotes_gpc()
 	}
 }
 
-// wiki help embedding
+// external help embedding
 // pay attention to use only ' quotes in $text (escape other ')
 //
 // see corresponding function in lib/common.inc.php