Footnotes: Simplified SCSS selectors.
Merge pull request #4498 from EricDunsworth/v3.0-footnotes-scss-simple

Footnotes: Simplified SCSS selectors.
Footnotes: Fixed th issue and further simplified SCSS selectors.
Merge pull request #4508 from EricDunsworth/v3.0-footnotes-scss-simple

Footnotes: Fixed th issue and further simplified SCSS selectors.
Updated links to v3.0.3+ production ZIP files.
As discussed in gh-4362.
Merge pull request #4512 from EricDunsworth/v3.0-dwnld-links

Documentation: Updated links to v3.0.3+ production ZIP files.
Documentation: Correct a grammar issue in the English polyfill documentation.
Merge pull request #4525 from pjackson28/fixpolyfilldoctypo

Documentation: Correct a grammar issue in the English polyfill documentation.
Merge branch 'v3.0'