Merge pull request #2 from struan/master

Update UUIDs for Mountain Lion
better README.md
Revert "better README.md"

This reverts commit 8d2cae6d76553bbb074b291335112d25d26c231c.
Update README.md
Add UUIDs for Mail/Messages 6.5
Merge remote-tracking branch 'upstream/master'
notes on how to get new UUIDs