Add Croatian (hr) translation

Add complete Croatian translation for Adminer, including all strings
in adminer/lang/hr.inc.php, plural forms support in lang.inc.php,
and Croatian descriptions and translations for all plugins.

plugins/sql-log.php

@@ -42,5 +42,6 @@ class AdminerSqlLog extends Adminer\Plugin {
 		'pl' => array('' => 'Rejestruj wszystkie zapytania do pliku SQL'),
 		'ro' => array('' => 'Logați toate interogările în fișierul SQL'),
 		'ja' => array('' => '全クエリを SQL ファイルに記録'),
+		'hr' => array('' => 'Bilježi sve upite u SQL datoteku'),
 	);
 }