Promise#catch
Promise#any
upload passing builds to s3
Fixes IE array detection

toString.call([]) fails while the Object.prototype.toString.call([]) works
some cross browser fixes

- toString.call([]) angers IE, use Object.prototype.toString instead
- getPrototypeOf polyfil
Update README.md
v2.0.1
fix for IE array detection
Merge branch 'master' of https://github.com/twokul/rsvp.js