changed specs due to model change
initial trip model spec
added find_closest_station
added distance_to() in station model
Minor change to make 1 less hit to DB
Added a couple tests for finding the closest station
Seeded the test database with the Bart stations

Necessary for testing
Merge pull request #22 from lilkraftwerk/closest_bart

Closest bart
update cron schedule
Merge branch 'master' into texting