Removed BOM from 'ar' language files. Prevents annoying "Exception: <filepath> does not start with '<?php' - check for BOM" warnings when running tests.
49 Arabic translation by Muhammad Bashir Al-Noimidarcs-hash:20070721095216-89468-7e0d53a421fe8a9d4da9d450c9b6f9a390299ba8.gz