Add Twitter API connect
Add last_id field in db to keep track of last tweet checked
Add image processor model class and dependent gems
Correct type: UpdateHistory to CheckHistory
Add bot class to model with bare structure
Check twitter connect by priting tweets in view
Add twitter bot class that contains the main run loop
Change regex scope to only include a-f for hex
Add tweet post methods in Twitter Api class and correct typo in Bot
Add rake task to run bot
Add UI to start run loop from homepage
Update README