Support for using AJAX as data source for Reveal popups.
added Codekit instructions
added thin and code_bash dependencies
Better method to test for Zepto
Merge branch 'master' of github.com:Rodsevich/foundation into Rodsevich-master
Pass classes from options to li elements in custom dropdowns
updated spacing in some places for the cursor declaration
Merge branch 'master' of github.com:zurb/foundation
fixes switch inside custom form when using mixin, closes #2370
added comment about deprecation of extend inside media query
Adding documentation about using Reveal with AJAX content.
Merge pull request #2364 from aik099/reveal-ajax-support

Support for using AJAX as data source for Reveal popups.
Merge pull request #2384 from mattolson/master

Avoid Zepto check optimization
Update source to secure source for rubygems in contributing guide.
fixed anchor thumbs
Merge branch 'master' of github.com:zurb/foundation
Update foundation.section.js

Added check to see if content area exists.  This is to ensure that sections without content areas are handled by the browser. (Linking to pages, instead of content)
Update foundation.section.js

Made a typo in previous commit
Fix quotes in CONTRIBUTING.md

Very minor fix - addresses the issue that as written creating a
Gemfile in CONTRIBUTING.md does not work due to improper quotations
in the echo command
Update grid.html.erb

The 3rd row in the Centered Columns section example has "large-uncentered" applied in the code but not in the example which is off-putting. This just adds it to the example as well.