Send emails to users who are watching topics
Specify type in topic RSS autodiscovery tag
Add a better from address to the email
Merge pull request #285 from alxndr/rss-for-topics

Specify type in topic RSS autodiscovery tag
Swap out "@" for "via" in email From field
change 404 page to use /new link under "New topics"
Code to support EmberJS + Discourse Tutorial feature: Admin Reports