Tabs: Fixed tab switching when hitting pause on carousel
Core loader: Fixed loading issue with nested plugins (fixes #4457)
Merge pull request #4484 from pjackson28/preventpausetabswitch

Tabs: Fixed tab switching when hitting pause on carousel
Merge pull request #4483 from pjackson28/fixv40coreloader

Core loader: Fixed loading issue with nested plugins (fixes #4457)
Prettify: fix unit test checking className attribute

Makes sure the element has a className attribute before
attempting indexOf call.
Toggle: fix unit test checking className attribute

Makes sure the element has a className attribute before
attempting indexOf call.
Merge pull request #4485 from patheard/unit-test-prettify

Unit tests: fix tests that check className of elements
Tabs: update tab interface medium/large screen appearance

1. Make .active tab more obvious by removing its bottom
   border and setting its background colour to white.
2. Increase padding/margin of tabs.
3. Remove tab panel bottom shadow and corner rounding.
4. Match tab panel border colour with tab border colour.
Merge pull request #4486 from patheard/tabs

Tabs: update tab interface medium/large screen appearance