Make Facebook login popup taller
Change specified height to 450
Option to change the email subject prefix

It adds a new setting 'email_prefix' to configure which [label] will be used in the subject of emails. Discourse currently uses '[title]'. The problem is that sometimes you need to set a longer title, that doesn't really work well for emails. I think this is very common since the HTML `<title>` tag is very important for SEO.

It will default to '[title]' if this setting is not used.

See: https://meta.discourse.org/t/where-to-change-the-email-subject-prefix/11989
Restore locale entry I shouldn't have removed
Normalize URL from Feed Entry after adding link to original in Topic

Since a URL might be case sensitive, adding a link to the original
Feed Entry with changed case to the Topic could end in 404.
Merge pull request #2192 from jorgemanrubia/configurable-emails-prefix

Option to change the subject prefix in emails
Merge pull request #2197 from aslakknutsen/feed_url_case

Normalize URL from Feed Entry after adding link to original in Topic
Merge pull request #2167 from riking/higher-facebook

Make Facebook login popup taller