Run smoke tests in parallel.
Fix JPEG decoding when chunked.
Merge.
Merge pull request #1529 from tobytailor/master

Fixes ContainsFrameScriptPendingChildren propagation
Merge pull request #1531 from tobytailor/master

Path2D polyfill
Use writer to trace player in the shell.
Merge.
Merge pull request #1535 from mbebenita/avx

Avx
Optimize Path2D polyfill
Better buffer resizing and data writing in the Path2D polyfill
Remove illegal character