Menu: Added support for additional footer links in the mobile panel (fixes #5250)
Merge pull request #5259 from pjackson28/fixsiteinfomobilepanel

Menu: Added support for additional footer links in the mobile panel (fixes #5250)
Restored responsivness for the YouTube player
Merge pull request #5261 from LaurentGoderre/master

Restored responsivness for the YouTube player
Form validation: Pluralized legend on checkbox example (fixes #5262)
Merge pull request #5267 from pjackson28/changecheckboxlegend

Form validation: Pluralized legend on checkbox example (fixes #5262)
Menu: Removed underlining on menu hover where sub-menu is present (fixes #4914)
Merge pull request #5270 from pjackson28/changemenuhover

Menu: Removed underlining on menu hover where sub-menu is present (fixes #4914)
Menu: Changed down triangle to chevron (fixes #5272)
Merge pull request #5276 from pjackson28/changemenutriangletochevron

Menu: Changed down triangle to chevron (fixes #5272)
SCSSLint: Bump to 0.23.1

New rules have been added that we can take advantage of
SCSSLint: Combine duplicate root selectors
SCSSLint: Remove unnecessary units

Sass already converts floats for division
SCSSLint: Apply PropertySort order

Basic alpha sorting for now
- Greyscale hack in tabs Sass requires it to be excluded
- Fixed but in slider SCSS with missing `@` for keyframes value
Build: Bump and target Autoprefixer

Don't vendor prefix IE8 files, and don't use IE8 hacks on the modern
sheets
Merge pull request #5279 from nschonni/autoprefixer-ie8

Build: Bump and target Autoprefixer
Tables: Changed sort icons (fixes #5209)