rake task and models to fetch users timeline data
refactoring

rename variables and method

edit store_last_post_id
if a user has cached posts associated with their account, they will be displayed on page load
TimelineFormatter can handle when cached posts were unauthed

fixed error in tests of redefining Struct
cached post is only used for initial feed request
rename variable from poster_recipient_profile_hash to facebook_profile_pictures
Refactoring

extract feed controller logic into FeedPresenter class
Merge branch 'master' of github.com:nburt/one_feed