adds a new output format
[DDC-93] Started ValueObjectsTest
[DDC-93] Parse @Embedded and @Embeddable during SchemaTool processing to make parsing work.
[DDC-93] Implement first working version of value objects using a ReflectionProxy object, bypassing changes to UnitOfWork, Persisters and Hydrators.
[DDC-93] Add some TODOs in code.
[DDC-93] Show CRUD with value objects with current change tracking assumptions.
[DDC-93] Rename ReflectionProxy to ReflectionEmbeddedProperty, Add DQL test with Object and Array Hydration.
add shortcut for force
Cleaned up documentation

Cleaned up documentation, tweaked some of the grammar, changed class#method() references to class::method(), added warning about performance impact of lazy loading
Updated method documentation to use # for instance methods instead of ::
Update getting-started.rst

Replaced ``class::$field`` with ``class#field`` to match Doctrine style

Cleaned up three paragraphs mentioned in https://github.com/doctrine/doctrine2/pull/734
Cleaned up events.rst

Was a mix-up between TestEventSubscriber and EventTest (e.g. the definition of TestEventSubscriber referenced TestEvent::preFoo, which did not exist). To clarify this I've renamed EventTest to TestEvent.

Tried to clarify the text in the Naming Convention section.

Added note that onClear is not a lifecycle callback.

Tried to clarify the definition of Lifecycle Callbacks.

Separated key/value descriptions into XML and YAML parts since the details are different

Added note in Implementing Event Listeners section that since 2.4 you do have access to EntityManager and UnitOfWork from lifecycle callbacks.

Added example about how to use the computed changeset to modify a primitive value in preUpdate section

Added naming convention example to Entity listeners class section

The other changes are typos and small fixes.
Updates based on feedback from Ocramius

Addresses all comments made so far, except the one about persists/updates
Modified executeInserts method in JoinedSubclassPersister to only check for the presence of columns in a composite primary key
Merge pull request #753 from 51systems/master

JoinedSubclassPersister doesn't properly bind on some versions of php
Fixed DDC-2506 by manually updating code. Closes PR #708.
Update working-with-associations.rst

Fixed syntax highlighting
Merge pull request #754 from mnapoli/patch-3

Fixed syntax highlighting in working-with-associations.rst
corrected English grammar in docblocks
Update override field mapping tut

* Added reference to override section of inheritance-mapping.rst
* Added link to yaml/xml examples in override-field-association-mappings-in-subclasses.rst