Set loaderInfo on stage
Don't throw if sprite symbols have more than one frame defined
Merge pull request #1432 from tschneidereit/nat

Combine build output into a set of js files per build target and letting targets depend on each other
Merge pull request #1433 from tschneidereit/nat

Fix native binding of AS2Utils class
Merge pull request #1434 from tschneidereit/nat

Add `_root` and `_level0` properties to AS2MovieClip
Merge branch 'nat' of github.com:mozilla/shumway into nat
Take clipping and masks into account when hit testing
Fix finding mouse target
Merge pull request #1430 from tobytailor/nat

Get droid.swf to work
Fix ever-increasing `_nextFrame` value on MovieClip instances with one frame

I guess they shouldn't ever even be calling advanceFrame, but I had an intermittendly-occurring case of this, and the check isn't incorrect in and of itself.