Added default language pack (en-gb)

admin/mail/affiliate_deny.php

@@ -0,0 +1,6 @@
+<?php
+// Text
+$_['text_subject'] = '%s - Your affiliate account has been denied!';
+$_['text_welcome'] = 'Welcome and thank you for registering at %s!';
+$_['text_denied']  = 'Unfortunately your request has been denied. For more information you can contact the store owner here:';
+$_['text_thanks']  = 'Thanks,';