Changes/additions to gruntfile.js

Did my best to get pretty close to WP CSS code standards, but haven’t
figured out how to retain newlines… Yet.

Autoprefixer has been added.

You will need to run `npm install` again. Grunt watch is now 100%
beefier.
Updated sass paths.
Mobile Theme: Fix spacing for comment reply heading
Mobile Theme: Close head element
Merge pull request #638 from kraftbj/mobile-theme-head

Mobile Theme: Close head element
Comment out mention of Upcoming Events Widget until it actually ships
Add Tiled Gallery requirement to Gallery Widget help text
Merge pull request #637 from kraftbj/mobile-theme-reply-fix

Mobile Theme: Fix spacing for comment reply heading
If we're inserting dynamic input, use .text()

Things can get funky if the search string includes html.
grunion: apply jshint

Merges r98447-wpcom.
REST API: add default sharing, likes, comment and ping status to the `options` response part of the `sites` endpoint

Merges r98437-wpcom.
jshint: Unignore grunion.js
Merge pull request #645 from Automattic/wpengine-oauth-error

JSON API authorization: Fix error comparing signatures when the WordPres...
Update widget-conditions.php

Better to use add_filter() than add_action(), for readability.
Allow All Instances of Sharing Meta to Save

Sharedaddy registers its meta box for all public CPTs by default (line
25), but only saves the option in the meta box for posts and pages. The
`sharing_meta_box_save()` function needs to save the meta box's
information for all CPTs to which the meta box is tied.
Merge pull request #649 from kitchin/master

Update widget-conditions.php
Merge pull request #650 from ericmann/master

Allow All Instances of Sharing Meta to Save
Share my deploy shell script around.
Don't try to use the sharing class if the module isn't loaded - just default to no status. Prevents fatals. Props Joey
Refactor out code duplication

When enabling/disabling a module there is duplicate code that pings WordPress.com with
the update. Abstracting this out into a method in Jetpack::toggle_module_on_wpcom().
This allows the dev on a module to simply do something such as:
add_action( 'jetpack_activate_module_monitor', array( 'Jetpack', 'toggle_module_on_wpcom' ) );
add_action( 'jetpack_deactivate_module_monitor', array( 'Jetpack', 'toggle_module_on_wpcom' )  );