Merge pull request #2278 from pjackson28/v3.0

Fixed illegal character in slider.js
Merge pull request #2283 from pjackson28/v3.0

Fixed Twitter feed so displays properly
[slideout] Make focus outline more apparent
Updated modified dates of footnotes working example pages.
Merge pull request #2291 from EricDunsworth/v3.0-footnotes-symbol

Updated modified dates of footnotes working example pages.
Table parser docs - Cleanup and #2032 broken link fixed
Merge pull request #2297 from duboisp/feature-table-parser

Table parser docs - Cleanup and #2032 broken link fixed
Re-enabled the Twitter Embedded Timeline now that Twitter has fixed the contrat issues.
Merge pull request #2298 from pjackson28/v3.0

Re-enabled the Twitter Embedded Timeline now that Twitter has fixed the contrast issues
Resolved merge conflicts.
Increased mobile menu tolerance for extra markup.
Merge pull request #2302 from pjackson28/v3.0

Increased mobile menu tolerance for extra markup
Merge branch 'v3.0'
Corrected disabling of heading links in the mobile menu.
Merge pull request #2303 from pjackson28/v3.0

Corrected disabling of heading links in the mobile menu
Merge branch 'v3.0'
Fixed bottom border of collapsed top-level mobile menu item.
Merge pull request #2304 from pjackson28/master

Fixed bottom border of collapsed top-level mobile menu item
Fixed typo in link to zebra striping working example page.
Merge pull request #2305 from EricDunsworth/v3.1-broken-link-fixes

Fixed typo in link to zebra striping working example page.