move to primefaces instead of richfaces
Merge pull request #53 from Alex-Diez/primefaces

move to primefaces instead of richfaces
add new methods to DAO API
Merge pull request #55 from Alex-Diez/dao-redevelopment

add new methods to DAO API
add DAO API tests
Merge pull request #64 from Alex-Diez/dao-tests

add DAO API tests