Fixed the rest of the libsass TODO regarding nested extend
Optimized the share icons SCSS
Fixed the invisible links in the caroussel being focusable
Fixed the transitions styles from jQuery mobile. Note that this overrides some of the transitions in Bootstrap.
Fixed the slide examples for the carousel
Merge pull request #5685 from LaurentGoderre/fix-tabs

Fixed the invisible links in the caroussel being focusable & other SCSS fixes