Rewrite and refactor getVisibleElements() to make it more generic - address comments by @brendandahl
Adding PlayPreview API support to pdf.js/mozilla-central
Add a console warning when JavaScript/AcroForm/XFA was found
Fixes chrome extension build (#2951)
Merge pull request #2955 from vyv03354/warn_unsupported

Add a console warning when JavaScript/AcroForm/XFA was found
Protection from empty/invalid root or kid in NameTree
Adds unicode conversion for js code
Fixes notificationBox on Linux
Merge pull request #2962 from yurydelendik/embed-mc

Adds PlayPreview API support to pdf.js/mozilla-central
Merge pull request #2969 from yurydelendik/notificationBox

Fixes notificationBox on Linux
Merge pull request #2968 from yurydelendik/nametree

Misc NameTree/JavaScript fixes
Merge pull request #2916 from Snuffleupagus/getVisibleElements

Rewrite and refactor getVisibleElements() to make it more generic