misc fixes:

spell:
 - removed weired break from tooltips
 - fixed time units being omitted by intval and subsequent cast to int

achievement:
 - casting id to int to avoid string-comparison in mysql (sped up load a lot)

localization:
 - fixed malformed file

infobox:
 - show video-options only when logged in

filter:
 - allow underscores in search (icon search)

search:
 - really fixed prepended quality for items

includes/class.filter.php

@@ -4,7 +4,7 @@ if(!defined('AOWOW_REVISION'))
 
 abstract class Filter
 {
-    private static $pattern   = "/[^\p{L}0-9\s\-\'\?\*]/ui";// delete any char not in unicode, number, hyphen, single quote or common wildcard
+    private static $pattern   = "/[^\p{L}0-9\s_\-\'\?\*]/ui";// delete any char not in unicode, number, hyphen, single quote or common wildcard
     private static $wildcards = ['*' => '%', '?' => '_'];
     private static $criteria  = ['cr', 'crs', 'crv'];       // [cr]iterium, [cr].[s]ign, [cr].[v]alue