adds java doc
adds line comments into TripService
Revert "adds line comments into TripService"
This reverts commit c2161d24264edb97e30d4520635a64aa1edeb7e1.
Revert "adds java doc"
This reverts commit 0d5c9734ee94ba4bbf85980ee2ef1fe6a6321a70.
test code coverage
adds UserBuilder
moves isFriendWith to User class + refactoring TripService
change method signature getTripsByUser in TripService - introduce new parameter loggedInUser
adds tripsByUser into TripDAO and unit tests
injects TripDAO into TripService and uses mockito for unit testing
uses spring to inject TripDAO into TripService