made some changes getting ready to release it

[editimage_extension] / EditImage.i18n.php

<?php
$messages = array();
$messages['en'] = array( 
    'editimage' => 'Edit Image',
    'cropimage' => 'Crop Image',
    'editimage-instructions' => 'Use your mouse to select an area in the image below and then click "Crop Image" to crop the image to the size.'
);
?>