servlet 2.5 --> 3.0
remove path
delete resource
include persistence.xml
generate JPA instead of JDBC
bug fix: uncapitalize attribute name
do not use deprecated getConnection method
change hibernate method from validate --> update
data model change: protocolused in dataset obligatory
remove code (protocolused in dataset always exists)
bug fix: add missing resource
Merge pull request #7 from dennishendriksen/feature/jpa

Make JPA default db + data model change + bug fixes