hibernate4 :  First step in the support of Hibernate 4
hibernate4 :  Fix merge conflict
hibernate4 :  Merge branch 'master' of github.com:Silverpeas/Silverpeas-Components into hibernate4
hibernate4 : Refactor MailingList:
- migration of the direct hibernate O/R mapping of entities to a JPA O/R mapping,
- the tests are now performed by using an in-memory datasource (H2) instead of using a remote database (PostgreSQL/Oracle),
- remove the use of the Spring JUnit Runner that can cause a lot of problems with the test contexts that doesn't free the data in the datasource and load/unload the application context programmatically
hibernate4 : Refactor ScheduleEvent:
- migrate the hibernate O/R mapping of entities to a JPA O/R mapping,
- add some tests on the DAO
hibernate4 :  Merge branch 'master' of github.com:Silverpeas/Silverpeas-Components into hibernate4
hibernate4 :  remove unused properties
hibernate4 : Refactor WhitePages:
    - migrate the hibernate O/R mapping of entities to a JPA O/R mapping,
    - add some tests on the DAO and on the WhitePagesService
hibernate4 :  Fix merge conflict with master
hibernate4 :  reset the version of the parent POM at 25-SNAPSHOT
hibernate4 :  Fix the merge conflicts with master with mailinglist and whitepages components
fixing bug #4389
fixing bug #4378
fixing bug #4459
fixing bug #4443
adding parameter 'usePdc'
Fix the merge conflicts with the commit a0288a3 that fixes the bug #4443
fixing bug #3763
Merge branch 'master' into feature-4473
closing feature #4473
using import engine instead of duplicated code embedded in 'kmelia' application