Add blurb of post to search results via API
FIX: Don't include image meta data when embedded in an email
FIX: Only show link clicks on the title of a onebox, not repeatedly in
its body.
If there's a `TopicEmbed` record for a url, we don't have to crawl it.
This should help sites like Boing Boing where sometimes links are
crawled before saved in WordPress.
Show installed version on dashboard after upgrade
Use a real link to docker manager in new version email
Remove the default_invitee_trust_level+1 privilege from trust level 3.
Merge pull request #2274 from vikhyat/badge-system

Fix user_badges n+1 query
Merge pull request #2273 from paully21/development-branch

Add blurb of post to search results via API
Add categories to the first topics in the email digest
Use "Top" logic for digest emails. Leave out muted categories.
Digest should exclude muted topics.
FIX: Don't sort the new topics by score since the Top logic is already
sorting them by score.
Basic "Also, there are x new topics" text for the digest
Break down new topic counts by category if a digest contains many.
update to ubuntu 14.04
more 14.04 refinements
actually, discourse.example.com is better
match image sizes
update final screenshot, add email section