add "focus" to focused btns with button plugin
Add touch-action: manipulate to buttons
Update QUnit settings/QUnit phantomjs bridge to new versions
Perform a cleanup after each test
Clean affix unit tests up
Clean alert unit tests up
Clean button unit tests up
Clean carousel unit tests up
Clean collapse unit tests up
Clean dropdown unit tests up
Clean modal unit tests up
Clean popover unit tests up
Clean scrollspy unit tests up
Clean tab unit tests up
Clean tooltip unit tests up
Mention #13500 in comment for ScrollSpy test
Move to 16ms from 18ms based on the Paul Irish's rAF polyfill
Move to leading pluses
Fixes #13746: Add docs section for brand image
Merge pull request #13853 from hnrch02/unit-tests-cleanup

Major unit tests cleanup