Don't invalidate text fields if the value hasn't changed.
Merge.
Stage video support, WIP.
Rename StageRenderer to Renderer since it doesn't always have a Stage.
Some comments.
Merge.
Merge pull request #1854 from mbebenita/mask

Mask
Make easel bounds always match those of the container it is placed in.
Fix extension.
Fix display list live-view, and FPS counter.
Fixes the extension for E10S.
Merge pull request #1857 from yurydelendik/e10s

Fixes the extension for E10S.
Fix serious regression.
Remove reference to deleted backend option.
Merge pull request #1855 from mbebenita/mask

Mask
Make the display of FPS meter more clear.
Merge pull request #1858 from mbebenita/mask

Make the display of FPS meter more clear.
Conveniently place trace logging files in the Shumway root directory.
Add screenshot API.
Update slave test harness to new screenshot API.