added variables.scss

a comprehensive list of all the default variables so that you can easily override them on each project.
Fixes #1845 Span with label clips when wrapped on mobile
Add an example for accordion on both small and large screens

If you want accordion functionality on both small and large screens, without tabs, the `accordion` class is required. Without the accordion class, the [**javascript**](https://github.com/zurb/foundation/blob/master/js/foundation/foundation.section.js#L95) will add top padding to the section element.
Adjust .switch to only apply to div tags

This makes it match [the docs](http://foundation.zurb.com/docs/components/switch.html) and less likely to conflict with 3rd party plugins that utilize the switch class on other tag types.
fix swipe in clearing

update clearing to use event with .touches property, which may be
e.originalEvent
button-group update

update button-groups to work with 'div > button' layout in addition to 'ul > li > button'

added $button-round variable and set to 100%
Merge pull request #1875 from servicecentral/master

Fixes #1845 Span with label clips when wrapped on mobile
Merge pull request #1891 from simshaun/patch-2

Add an example for accordion on both small and large screens
Merge pull request #1893 from simshaun/patch-3

Adjust .switch to only apply to div tags
Merge pull request #1894 from JBChristy/master

fix swipe in Clearing
Merge pull request #1899 from ascottmccauley/button-group-update

button-group update
Fixed wrong check for reveal css-top property.
add app.scss to compass upgrade manifest
Fix breadcrumbs first element bug

See issue #1876 and #415 for more information. 

The first element is out of breadcrumbs is not inline with the
supplemental elements in the list.
convert strings that are actually numbers into numbers
Merge pull request #1906 from jsmestad/patch-1

Fix breadcrumbs first element bug
add missing data-options functionality to orbit
Merge branch 'master' of github.com:zurb/foundation
updated
Merge branch 'master' of github.com:zurb/foundation into bug-fixing