Fix #1459 / Position adjustment

Add an offset setting for position adjustment (https://github.com/zurb/joyride/commit/9947443e1ceafa623fece4c74eefa9b87c474cd5)
Added open_selectors option to settings, and updated the documentation.
Removed debugging statements.
Update foundation.dropdown.js

Centered the dropdown with it's parent, and the pip with the dropdown. Both are now responsive to shifting page sizes.
Add a setting for top bar hover (Part 2)

2nd part of :
https://github.com/zurb/foundation/pull/5087
Adjustments to fix the navigation if additional elements are added to the template.
Correction Off Canvas - Label Display (issue #5093)

Missing styles added.
Close <meta /> tag to be valid XHTML
doc pages offcanvas toggle anchor requires href

 Updated offcanvas examples to include href attribute on toggle anchors.

 The offcanvas toggle anchors require an href attribute to work properly
 on iphones as discussed here
 http://foundation.zurb.com/forum/posts/1651-cant-get-off-canvas-to-toggle-on-mobile
Use correct 'this' when setting data-interchange-last-path.

Because the 'this' being used was for the wrong scope
data-interchange-last-path is not set. This can lead to making multiple
requests for the same content unnecessarily.
Add $medium-up sizes for h5 and h6

With the new $h[1-6]-font-reduction in place, h5 and h6 need sizes set for $medium-up.
Update _settings.scss
media-queries.html: fix typo: xlarge => xxlarge
Fix URL in changelog

An extra bracket had appeared, meaning the Markdown was unable to be converted to HTML properly.
Merge pull request #13 from winghouchan/master

Update Foundation
Fix typos

Fixes #5236
Period to colon
Typos
Typos
Presentation