First milestone in progress: commit before major changes - trying to add
a web finder for Training.findTrainingsByNameLike
First checkpoint in progress: completed tasks: TODOs; commit before
a major change: trying to replace HYPERSONIC database with MySQL for
development. 
First milestone in progress: commit before major changes - trying to
specify a different persistence configuration for testing. 
First milestone in progress: completed designing sample data to be
loaded on bootstrap