Updated by ALF automation.
Merge pull request #4551 from adobe/alf

ALF Automation
Re-add toolbar hover. Fix some button appearance issues.
Merge pull request #4552 from adobe/larz/toolbar-hover-squashed

Re-add toolbar hover. Fix some button appearance issues.
Updated by ALF automation.
Merge pull request #4559 from adobe/alf

ALF Automation
Revert "Workaround for the Tern crash."

This reverts commit 22fed2a8e230f07394b3b1b5dfb8691dd214d76f.
Merge pull request #4565 from adobe/revert-acorn-fix

Revert "Workaround for the Tern crash."
Merge branch 'master' into jasonsanjose/clean-unit-test-prefs
code review comments