Merge pull request #1449 from mbebenita/nat

Fix type-o in `_scaleToHeight`.
Introduce DisplayObject#_containsGlobalPoint and don't use Point in that or _containsPoint

Reduces the amount of garbage created during hit testing quite drastically.
Correctly apply transform of hitTestState when hit-testing SimpleButton
Make the `flash` build target depend on `swf.d.ts` to be able to use Stream

Stream can probably be removed completely, but for now this'll do.
Rename DisplayObject#_containsGlobalPoint to _isUnderMouse and stop using it in hitTestPoint

That way, it can be overridden in SimpleButton without `hitTestPoint` giving wrong results for that: that method mustn't take the hitTestState into account.
Mark a DisplayObject's inverted matrix as invalid in _setMatrix

And remove special-casing of hitTestState in SimpleButton.
Merge pull request #1448 from tschneidereit/nat

Optimize hit-testing and fix Simplebutton-related bugs. r=tobytailor
Return an empty object instead of null for non-specifiec `parameters` in LoaderInfo

This doesn't add support for actually supplying parameters, so it's mostly a stub.
Properly clamp values or throw errors in some Stage setters

assert mustn't ever be used on content-supplied values.
Merge pull request #1452 from tschneidereit/nat

Bugfixes in Stage and LoaderInfo builtins
Fixes Stage.align setter.
Stage.align setter test.
Bug 1037541 - Implement AVM2 opcode astype (0x86)
Merge pull request #1454 from tschneidereit/avm2-ops

Bug 1037541 - Implement AVM2 opcode astype (0x86)
Bug 1037541 - Follow-up for stupid error in supposedly-safe last-minute change
Merge pull request #1455 from tschneidereit/avm2-ops

Bug 1037541 - Follow-up for stupid error in supposedly-safe last-minute change
Bugfix in describeTypeJSON's addTraits function
Bind stubs for GameInput-related classes in the natives linker

Needed for the "The Sea Has No Claim" game.
Bind stubs for Multitouch-related classes in the natives linker

Needed for the "The Sea Has No Claim" game.
Merge pull request #1456 from tschneidereit/nat

Bugfixes for "The Sea Has No Claim" game