when docviewer has scrollbars, don't let keyboard scrolling events propagate
fix comments
Romanian locale improvements
Merge remote-tracking branch 'upstream/master'
more Romanian locale improvements
handle scrolling for any element in viewer
Update LIVE_DEVELOPMENT_INFO_MESSAGE
Provide more accurate coordinates for scaled image and show/hide scale sticker the right way.
optimize code that sets scrollingUp
fix scrolling with focus inside viewer, but outside scroller
Merge remote-tracking branch 'origin/master' into randy/issue-5884
provide customViewerRegistry to enable extension developers to add CustomViewers
don't use global keydown hook
fix tabbing in content
review feedback
changed cmd_switch_language
Merge pull request #6100 from adobe/rlim/pixel-guide-issues

Provide more accurate coordinates for scaled images and show/hide scale sticker the right way.
 register ImageViewer more elegantly.
cherry pick less fix from CodeMirror
Merge pull request #6189 from adobe/rlim/cherry-pick-less-fix

Cherry pick less fix from CodeMirror