Add Avery 5395 to List of Mailing Labels

My clients needs Avery 5395 so I have created a patch (against what is in github not what is in drupal.org). I wasn't exactly sure what all the fields were so the patch needs to be reviewed. I have assumed:

'name' => '5395' // name of label
'paper-size' => 'letter' // paper size
'metric' => 'mm' // units
'lMargin' => 17.526 // left margin
'tMargin' => 13.208 // top margin
'NX' => 2 // number of items in x (left to right) direction
'NY' => 4 // number of items in y (top to bottom) direction
'SpaceX' => 9.398 // spacing between items in x (left to right) direction
'SpaceY' => 7.874 // spacing between items in y (top to bottom) direction
'width' => 85.852 // width of one item
'height' => 59.182 // height of one item
'font-size' => 12 // font size

I think it is working, but please let me know if any of the above are misunderstood. If you are able to test the patch and apply it (if okay), that would be great.

Thanks,
Kristen