Add default margin to right of Font Awesome icons used inside of headers. Fixes #123.
Add link to Brand Guide to main header navigation for all sites
Changed the label for the search form submit button from 'go' to 'search'.
Add github contribute link to footer of all qunitjs.com pages. Closes gh-189
plugins.jquery.com: Removed unused images directory.
Revert "Add github contribute link to footer of all qunitjs.com pages. Closes gh-189"

This reverts commit 34b12999c6553f51386fe026bb9d870c7e686860. See discussion in #189
Remove top/bottom padding on `code` elements so they don't bleed into each other on successive lines
Fixing sidebar issue that makes jQueryUI.com not make full-width on mobile devices.
Fixing both jQueryUI and API.jQueryUI.com's full-width on mobile.
Temporary fix for the navigation breaking into two-lines on small screens. Fixes #185.
Remove padding on #content on small widths,  which caused odd whitespace around #banner-secondary
Fix appearance of #banner-secondary (prevent overlap/underlap) at smaller breakpoints
All sites: only load Stripe js if we're on HTTPS. Temporary workaround to avoid add'l requests loading 220k of additional JS/CSS on every pageload.
Revise Stripe hack to actually exclude running *all* Stripe JS unless HTTPS
Improved empty search results pages.
Updated themes/footer-mobile.php from jQuery 1.8.3 to 1.9.0
jquery.org: Whitespace.
jquery.org: Use buttons instead of anchors for forms.
All sites: Update to jQuery 1.9.1, reference jQuery 1.9.1 download in sites that use default jquery footer
jquery.org: Remove unnecessary project styles.