merging ui updates
Merge pull request #11 from Sammykhaleel/ui

merging ui updates
changed app name on the views from 'Smart Alarm' to NYC Subway Alerts. Changed datatype for alert start & end attributes to 'time' for consistency. Prepping to test Twilio alerts
experimenting with time diplay for alerts. Deleted unecessary files
made the time_relevance method work, and modified front end of DateTime objects
fixed time zone issue
blake fixing updates of alerts
called sms instace method on twilio object
Merge branch 'master' of https://github.com/Sammykhaleel/mta into twilio_tweeks
resolved two merge conflicts in alerts controller and partial form