Merge pull request #1632 from yurydelendik/master

Configures amount of threads during AVM2 testing
Enables swf/add.swf test
Merge pull request #1633 from yurydelendik/add-swf

Enables swf/add.swf test
Simple fuzzer framework that fuzzes SWFs using swfmill.

Trace output is collected using the debugger player, which is always guaranteed to terminate.
Merge branch 'master' of https://github.com/mozilla/shumway into overlay
Merge pull request #1634 from mbebenita/overlay

Overlay
Merge pull request #1635 from mbebenita/overlay

Add more swfs and trace output.
Add more swfs and trace output.
Use ref counting by default.
Merge pull request #1636 from mbebenita/overlay

Use ref counting by default.
Merge pull request #1637 from mbebenita/overlay

Add fuzz manifset file.
Add fuzz manifset file.
Moves failed swfdec tests from the swfdec_test_manifest.
Merge pull request #1638 from yurydelendik/swfdec

Moves failed swfdec tests from the swfdec_test_manifest.
Removes dead code from the extension
Instrument SWF files to trace out frame execution.
Adds grunt interface for instrumentation.
Merge pull request #1639 from mbebenita/instrument

Instrument
Fixes initaction for some AVM1 movies
Merge pull request #1640 from yurydelendik/initaction

Fixes initaction for some AVM1 movies