[2.0][DDC-79][DDC-261] Fixed. Also fixed support for deleting objects by reference (getReference() + remove() + flush()) to effectively delete objects without loading them.

[2.0] DDC-214 - Changed MysqlPlatform::geTListTableForeignKeySql() slightly to be performant again, thanks Eric Durand-Tremblay for the patch!

[2.0][DDC-284] Fixed. API polish and some convention over configuration simplifications for join columns and join tables.

[2.0] Fix casing bug in Parser - IfFunction checks lower-case the function name, but register methods don't.

[2.0] DDC-163 - Missing DQL Alias prefix for many-to-many table in SqlWalker lead to duplicate prefix generation in SQL statement when a many-to-many join table is used more than once.

[2.0] DDC-214, DDC-303, DDC-304 - Fix several errors with Schema Inference from Database and Metadata and Comparisons, aswell as related bugs in DatabaseDriver. DDC-305 - Abstracted TRUNCATE command for all platforms.

[2.0] DDC-268 - Exchanged DoctrineException for MappingException and added missing exception method (thanks to Christian Heinrich for the patch)

[2.0] DDC-271 - Add columnDefinition for Join-Column in Annotation, XML and YAML driver, updated SchemaTool to use Join Column definition instead of using the column's columnDefinition if specified. Refactored MappingDriverTest to allow for feature specific test-cases instead of one large assertion block. Fixed typos in XmlDriver - Updated doctrine-mapping.xsd Schema File

[2.0] DDC-294 - Added "postConnect" event in Doctrine\DBAL\Connection and refactored TestUtil to allow configuration of DBAL EventManager Subscribers by the use of PHPunit Xml configuration.

[2.0][DC-460] Refactored cache bulk deletion methods to use driver specific features to retrieve list of keys. Also, refactored tests
so that all methods are tested for all drivers.

Removed:

- Doctrine\Common\Cache\AbstractCache::count()
- Doctrine\Common\Cache\AbstractCache::deleteAll()

API Changes:

- Doctrine\ORM\AbstractQuery::getResultCacheId() now public

Bugs fixed:

- Doctrine\Common\Cache\AbstractCache::deleteByPrefix() was deleting _every_ key in cache

[2.0] DDC-277 - Remove support "default" option in metadata mappings, but keep it as a concept in DBAL layer to support for example versionable entities.

[2.0] DDC-92 - Refactored Doctrine\DBAL\DriverManager some more in regards to exceptions and added some more test-cases.

[2.0] DDC-92 - Removed DoctrineException from Doctrine\DBAL\DriverManager and replaced with more specific DBALException's