Fixed typo in SQLFilter (use statement ClassMetadata)
[DBAL-483] Pass default values to DBAL mapping layer correctly to fix default comparision bug.
[DBAL-483] Add sqlite check again as ALTER TABLE is only supported as of 2.4
Merge branch 'DBAL-483' into 2.3
Fix DDC-2409
Simplify condition of previous commit (5cdc73e)
Merge branch 'DDC-2409' into 2.3
[DDC-1984] Throw exception if passing null into UnitOfWork#lock() - which can happen when EntityManager#find() tries to lock entity that was just deleted by another process.
Merge branch 'DDC-1984' into 2.3
[DDC-2426] Missing length attribute in doctrine-mapping.xsd for <id> tag.
[DDC-2267] Allow EntityManager#flush($entity) to be called on entities scheduled for removal.
Merge branch 'DDC-2267' into 2.3
[DDC-2423] Fixed bug with EntityGenerator not generating fetch="" attribute in association annotations.
Merge branch 'DDC-2423' into 2.3
Swapped places indexBy and condition in accordance with EBNF
Added test complex inner join with indexBy
Merge branch 'DDC-2437' into 2.3
[DDC-2387] Fix DatabaseDriver not working with combinations of composite/association keys.
Merge branch 'DDC-2387' into 2.3
[DDC-2280] length attribute in <id> was not converted.