Set Loader URL from URLRequest.
Merge branch 'master' of https://github.com/mozilla/shumway
Merge branch 'master' of https://github.com/mozilla/shumway
Merge branch 'master' of https://github.com/mozilla/shumway
Rename get/setSlot
Clean up property enumeration, WIP.
Always check if the property exists when enumerating.
Don't pollute objects with enumerable properties.
Merge pull request #832 from mbebenita/enum

Enum Fixes / Cleanup