Twitter client with offline mode
"As a user I can login to Twitter" - done
User can login via system account
"As a user I see my twitter name in the navigation bar" - done
"As a user I can view my Twitter feed (fail plan: display error)" - done
"As a user I can refresh my feed using pull-to-refresh (fail plan: display error)" - done
"As a user I can view my Twitter feed without internet connection" - done
"As a user I expect that feed will be automatically updated when network connection is available" - todo
"As a user I can tap on system compose button on the right of navigation bar and get to post new tweet screen" - done
"As a user I can post new tweet (fail plan: display error)" - done
todo: Add observer signal to network reachability and call "updateFeedSignal" if connection is available
todo: Update feed immediately if user posted tweet
todo: Handle all posible errors
todo: More tests