Helpers and fixes
Beginnings of feed fetcher (currently not yet working), using Kue and Redis
Only store post summary when it differs from the body content
Remove feeder and add tests for the new fetcher
Most of the subscription action. Just need to add/remove tags
Subscription listing API
The rest of the subscription editing actions
Add API to check if a user is subscribed to a feed
Implement quickadd API
Add reusable Tag#stringID property
Move starting fetcher to main test file
Implement tag listing API and stub the other tag APIs
Get rid of some duplicated test code
Make parseTags include the user
Implement rename-tag API

TODO: if dest is another existing tag, the tags need to be merged
Implement disable-tag API
Remove references to a tag when it is deleted
Remove posts when a feed is removed
Better delete cascade
Parse item ids