A couple of tuneups for attachments - the attachment dialog was slightly tweaked because it had a "complete" button which kind of looked like the button to push to do the upload which it wasn't. Switched that to a "Close" button and re-arranged the button order slightly.

Also now if an image is used inline in a message, it won't display as a thumbnail at the end and instead will be just a link in the regular non-thumbnail attachments list. This is so the image doesn't appear twice on the screen which kind of looks a little weird.

- Michael