Change defaul align to align right?

It would be nice to add 'img_assist_default_alignment' to the Image property dialog settings. Perhaps there is a reason for that perhaps not.

I have done something like that:

    $form['properties']['img_assist_default_alignment'] = array(
    '#type' => 'select',
    '#title' => t('Default alignment'),
    '#default_value' => variable_get('img_assist_default_alignment', 'left'),
	'#options' => array('left' => t('left'), 'right' => t('right'), 'none' => t('none'), 'center' => t('center')),
    '#description' => t('The alignment.'),
  );

for the file img_assist.admin.inc

I don't know if there is initialisation required somewhere. I've just added the variable in the database before :

INSERT INTO `database_name`.`variable` (
`name` ,
`value`
)
VALUES (
'img_assist_default_alignment', 's:4:"none";'
);

A proper patch would likely be accepted.