Use article title and body to track what was sent. Not really tested.
Merge branch 'master' of github.com:dbenamy/monkey-shit

* 'master' of github.com:dbenamy/monkey-shit:
  disabling email again
  fixing route redirect to POST still works
  running as it happens less often
  sending emails again
  logging, bug fixes, disabling email
  hopefully fixing overly zealous subscription manager
  Disabling email
  iterating through all subscriptions and using last_delivered in get header for feedzirra

Conflicts:
	app/models/subscription.rb
	lib/subscription_manager.rb