Noticed that the Subject and Body of email notifications displayed reversed.

Hi Hexxeh,
Thanks for the nice library; I saw that the subject and body of the email notification were reversed when displayed on my pebble with firmware 1.9.1, so I altered the order in pebble.py. The manual packing of pascal strings was modified to let pack do it with 'p'.
I added a playing command to p.py
I updated a little bit of the README because running pebble.py after pairing doesn't demonstrate successful communication to the end user.

There's a little more detail in the initial commit message for 8adf52c...