add API for favicon refresh. it will be fired after subscribed feed
remove to fetch favicon on Member#subscribe for speed
Fix English locale file
Fix spec with webmock (and poorly mistake of me)
Merge pull request #71 from ykzts/fix/english-locale

Fix English locale file
remove the file ".ruby-version" and ignore ruby versioning file.
Merge pull request #70 from uu59/speedup_subscription

Speedup subscription
Merge pull request #72 from aerith/remove-versioning-files

remove the file ".ruby-version" and ignore ruby versioning file.