Propagete method return types.
Remove old VM_IS_CLASS marker.
Adds some tracing events.
Reworks the way iterators work.

Still not very happy with it but better than the way it was before. For vectors, iteration is now about 10x faster and doesn't allocate memory.
Compiler bug fix related to coercing class constructors.
Stub apply filter.
Adds option to disable image conversion and uploading.

This is useful when trying to get a more accurate execution profile.
Adds a larger stage scale factor.
Avoid sending empty text content
Merge branch 'nat' of https://github.com/mozilla/shumway into nat
Ignore null states when initializing first frame of a movie clip
Make sure Shapes cannot have undefined sources.
Merge branch 'nat' of https://github.com/mozilla/shumway into nat
More debug tracing in the remoting player.
More clear tracing message.
Add option to play a certain number of frames.
Temporarily disable optimization in the 2D backend that checks for empty bounds.
Merge pull request #1398 from tschneidereit/nat

MovieClip optimizations
Update avm2/bin/avm2.js to correctly reference SWFTags.js