Add Jetpack Publicize and Markdown support
Updated copy to add Jetpack Shortcode Links

This lets users know that Jetpack offers all the shortcakes they need
for videos and google maps.
Starting a uninstall file

Currently all code is commented out, decide best way to implement this
feature in the future.
Improvements to default templates

* Added basic schema support
* Added support for WordPress SEO Breadcrumbs