Fixed time discrepancy

* issues with timezones are resolved
formatting text message output

* accepts trip object, formats text correctly
* also added associatons between users/trips
added rake tasks for text sending
added rake tasks for sending texts

* texts send
* working on cron job to do it every minute
update cron schedule
Merge branch 'master' into texting
Adding tests for trip model

* testing several tiny methods that combine into one big one
Merge pull request #21 from lilkraftwerk/texting

Texting