Added Support for Ubuntu 15.04 in OS detect code.

Till Brehm

2015-05-06 68af0bbdd603e8b8bb9eae2cbd55264ce0647ddb

 interface/web/sites/lib/lang/cz_database_user.lng

@@ -21,3 +21,4 @@
$wb['globalsearch_searchfield_watermark_txt'] = 'Hledat';
$wb['globalsearch_suggestions_text_txt'] = 'Návrhy';
?>