jQuery.org cleanup.
Removing images that are fed by content and not used here from the theme directory.
jquery.org stripe plugin: Send unescaped name/description to Stripe so O'Brien doesn't become O\'Brien
Updating version in package.json to match latest published tag
2.1.7
2.1.8
All sites: Improve sizing of headers in #banner-secondary
learn.jquery.com: Ensure beta ribbon is visible on home page, tweak positioning thereof
learn.jquery.com: Footer - fix up appearance of calendar icon, override unsightly inherited negative margin
All sites: add links to Learning Center back to main menu and footers
learn.jquery.com: Update blogname back to Learning Center
2.2.0
api.jqueryui.com: Add link to learn.jquery.com on index page.
2.2.1
Sidebar: Don't use category descriptions for titles. Fixes #197.
*.jqueryui.com: Update version in footer.
jqueryui.com: Reduce header size in download box.
2.2.2
Updated themes/footer-mobile.php to Mobile 1.3.0 and jQuery 1.9.1
2.2.3