[OPENENGSB-3723] Use CssHeaderItem to include jquery ui css
Merge pull request #883 from thrau/master

[OPENENGSB-3723] Use CssHeaderItem to include jquery ui css
Merge pull request #882 from mipe/master

[OPENENGSB-3721] added deleteCommit method to PersistInterface and Engin...
[OPENENGSB-3730] added delete cascading to JPAObject lists in JPACommit