Merge pull request #101 from merk/rtel

Initial ResolveTargetEntityListener cookbook entry
Merge pull request #87 from FabioBatSilva/patch-6

docs for association/attribute override
Merge pull request #518 from Fran6co/fix-double-on

regression fix for left joins (double ON)
Merge pull request #515 from tranver/master

Fixes sandbox cli: The helper "em" is not defined.
Merge pull request #517 from nemekzg/DDC-1765

Fix for DDC-1765
Merge pull request #413 from FabioBatSilva/refactory-persisters

code refactorings on persister
[DDC-2074] Added test for PersistentCollection#clear.
[DDC-2074] Fixed bug regarding clearing PC's without owner

When calling clear on a PC that has no owner (e.g. because it was
cloned), it can't be deleted as there is no metadata available.
In these cases, it shouldn't be scheduled for deletion.
Merge pull request #523 from jankramer/DDC-2074

[DDC-2074] Bugfix regarding clearing cloned PersistentCollections
Fix DDC-2172
refactoring tests
Fix CS
Added support to subselects in update item.
Merge pull request #526 from FabioBatSilva/DDC-2172

[DDC-2172] Fix EntityGenerator get literal type
Clarify BC break in DDC-2156
Fixed documentation for Doctrine\ORM\Query\AST\Node::dispatch().
Fixed coding standard issue, as per @stof's request.
Merge pull request #527 from BenMorel/master

Fix documentation for Doctrine\ORM\Query\AST\Node::dispatch()
Documentation (docblock) fixes.
Fixed typo