Scroll find selection into view
Do the horizontal scroll into view before selecting and vertically centering
Making img percentage stickier.
make sure _liveDocument exists
Merge pull request #5875 from adobe/larz/img-pct-fix

Making img percentage stickier.
Merge pull request #5861 from lkcampbell/3063-fix

Automatically scroll find selection into view
Merge pull request #5876 from adobe/randy/issue-5774

Make sure _liveDocument exists before dereferencing