added converters for joda time
some baby parent
created baby repository impl and renamed the test for user repository
introduced factories, refactored tests to use factories, ignored broken controller test
added baby and baby parent factories, added integration tests for babyRepositoryImpl
fixed little comments
moved test to the correct package
moved the user service in the user package, created the baby service
added generic mongo repository, using bigDecimal as ids, added methods to repositories
using the generic repository for all repositories
create generic mongo service, used the generic mongo service in all the services
created userServiceImplTest, replaced BigDecimal with BigInteger
added unit test for user service impl
added new tests for user service
created the GenericService and GenericRepository interfaces
using sets of ids instead of sets of objects
added new findAll method to GenericRepository, added new methods for getting following and folowers in the user repository
added test for findFollowers, refactored some tests, fixed some tests
fixed bug in userMongoRepository
added some new cases to userRepository test