[DDC-1799] Fix bug in YamlExporter using OneToOne instead of ManyToOne
Merge branch 'DDC-1799'
[DDC-1835] Fix cloning persistent collections.
[DDC-1783] Fix memory leak in ObjectHydrator when using AbstractQuery#iterate() and EntityManager#clear()
Merge branch 'DDC-1783'
[DDC-1791] Fix OutputWalker Pagination on Oracle
Merge branch 'DDC-1791'
[DDC-1777] Fix bug in BasicEntityPersister#exists() when no primary key is set.
Merge branch 'DDC-1777'
[DDC-1713] Verify EntityRepository#findBy() works with fetching array of values.
Merge branch 'DDC-1713'
[DDC-1685] Fix bug in OutputWalker when used on entities with Foreign Key as Primary Key.
Merge branch 'DDC-1685'
[DDC-1798] Exporter generate error when composite primary key is generated. Fixes GH-342
Merge branch 'DDC-1798'
[DDC-1685] Fix DDC-117 Dataset cleanup
[DDC-1497] Change EntityGenerator add method generation for collections.
[DDC-1840] Implemented parameters as a collection.
Optimized getParameter.
Added 2.3 BC break information.