Added default language pack (en-gb)

admin/localisation/return_action.php

@@ -0,0 +1,21 @@
+<?php
+// Heading
+$_['heading_title']    = 'Return Actions';
+
+// Text
+$_['text_success']     = 'Success: You have modified return actions!';
+$_['text_list']        = 'Return Action List';
+$_['text_add']         = 'Add Return Action';
+$_['text_edit']        = 'Edit Return Action';
+
+// Column
+$_['column_name']      = 'Return Action Name';
+$_['column_action']    = 'Action';
+
+// Entry
+$_['entry_name']       = 'Return Action Name';
+
+// Error
+$_['error_permission'] = 'Warning: You do not have permission to modify return actions!';
+$_['error_name']       = 'Return Action Name must be between 3 and 64 characters!';
+$_['error_return']     = 'Warning: This return action cannot be deleted as it is currently assigned to %s returned products!';