Appending the Paginator tree walker hint, instead of removing all the other hints.
Added docblock.
Added a test which verifies that the tree walkers are kept.
Fixed name colision.
add missing hint about lifecycle callback
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
Corrected PHP type for "decimal" mapping type

"Basic Mapping" documentation says:
"decimal: Type that maps a SQL DECIMAL to a PHP string."
Updated EntityGeneratorTest::testEntityTypeAlias
Updated EntityGeneratorTest::testEntityTypeAlias
Skip not mapped public properties in SchemaValidator
[DDC-2572] Fix ResolveTargetEntityListener subscription example
Added coverage for querying support during postLoad.
Merge pull request #751 from doctrine/PostLoadCanQuery

Added coverage for querying support during postLoad.
ORM side fixes.
Merge pull request #752 from doctrine/PgSqlSchemaFix

ORM side fixes.
Fixing pgsql test.
Merge pull request #744 from jbruni/patch-1

Corrected PHP type for "decimal" mapping type
Merge pull request #737 from Koc/fix-schema-validator-master

Skip not mapped public properties in SchemaValidator
Appending the Paginator tree walker hint, instead of removing all the other hints.