Module Related Posts: Update RTL CSS file based on aa20b5f from @kraftbj
Merge pull request #318 from xyu/related-post-mobile-rtl

Module Related Posts: Update RTL CSS file based on aa20b5f from @kraftbj
Module Related Posts: Bring dashboard settings preview more inline with what is generated by the module.
Module Related Posts: Add shortcode to allow for custom placement within content.

Add a optional shortcode `[jetpack-related-posts]` which users can place
anywhere in the post content to display a related post section. If no
shortcode exists we default back to placing it at the bottom of the post as
happens now.
Merge pull request #319 from xyu/related-post-shortcode

Module Related Posts: Add a shortcode for custom placement
Update external Sass processor library

Bump from v0.0.7 to v0.0.9

@see https://github.com/leafo/scssphp/blob/v0.0.9/scss.inc.php
Twitter Cards: fix typo in class name
Twitter Cards: trim whitespace
Twitter Cards: update to jetpack textdomain on Settings Page
Publicize: fix typo in comment
Publicize: trim whitespace
Twitter Cards: remove extra @ from jetpack_twitter_cards_site_tag

It caused a double "@@jetpack" in the Twitter sharing prompt
Add merge-data.json

This file will keep track of the last time each common file
was the same in both wpcom and Jetpack. This file will be
generated and updated by the new build script on wpcom, but
it is be safe to modify the entries in it by hand as well
(other than the comment at the top).
Remove bogus file from merge-data.json
Add file hashes to merge-data.json

This is a significant time optimisation and allows this file to be
updated in 7 seconds rather than 47 seconds.
Populate more entries in merge-data.json

This populates entries where there have been changes only to the
Jetpack side and not to the wpcom side.

See r93508-wpcom.
Finished populating merge-data.json

See r93513-wpcom.