Merge pull request #1 from dracos/master

Ignore built things, and work around issue with accented characters
add in Mountain Lion UUIDs
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
Fix duplicate text in README.
Make sure system python is used.
10.7.5 UUID strings.