Sharedaddy: Style on Admin Page
Related Posts: Return stale value if WPCOM API is unreachable
Related Posts: Only cache results from WPCOM API if posts exists.
Sharing: Reparent the Email UI to Prevent Broken Layouts

Steps to reproduce:
1. Add the email sharing button to your site.
2. Wrap your theme's wp_footer() call in <div style="position: relative"></div>
3. Click the email sharing button.

This commit reparents the sharing_email div to the body element, and caches a couple jQuery selectors
Check for array input in AtD_change_mce_settings, and unit tests.
id variable might not have been defined
Make icon only share links accessible
Change 'Edit' to 'Edit Details' on Publicize Meta Box and place both links on a new line
Prevent markdown links conflicting with shortcodes
Localize 'Open in new window' string
Reorganized CSS

Moved `scss/`, `img/`, and `css/` to root
Combined `img/` with `images/' and moved `images/` to root
Fixed font links and `jetpack-icons.css` paths
Gigantic CSS reorg

Features
* Atomic modular layout
* nested media queries (more maintainable)
* requires Sass 3.3 or higher to compile
Combined `_page-modules.scss` into `_settings.scss`
Moved `_mixins` folder and adjusted font variables
Concatenates front-end module styles

* concatenates most front-end styles into `jetpack.css`
* cssjanus also runs on `jetpack.css` adding rtl styles
Refactored grunt and added icon subfolders

* Would like to move Genericons folder into icons (needs discussion)
Adjust files concatenated for jetpack.css
Added new grunt task: `grunt concatenate`

* Manually concatenates front-end modules into one file