Update bundle
Add migration file for feed token
Migrate database
Generate feed token when user saved
Extract method to generate token
Add simple atom feed
Change feed url
Update feed contents
Fix stars url

- starts -> stars
Add link to private feed
Add migration file to generate feed token
Migrate database
Fix position for link to feed
Merge pull request #20 from tricknotes/feed

Add link to "News Feed"
Update bundle
Add host to feed url
Fix feed url for mail
Update bundle
Add optional setting for github authorization for system
Add method for github client using system authorization