[2.0] DDC-312 - Revert annoying View and Trigger variables in Schema instance, complete "View" support by just returning a View instance

[2.0] Refactored Doctrine\DBAL\Schema API a bit Table::createColumn() was inconsistent with all the other methods being add*

[2.0] Adding DriverChain mapping driver type to allow you to configure drivers to use for certain entity namespaces

[2.0][DDC-366] Fixed. Fully qualified names were borked in the lexer as well. Tests didnt catch it because of unfortunate namespace constellations. Fixed now.

[2.0][DDC-364] Added Doctrine\Common\Version which provides the current version of Doctrine. Also added CLI tasks for Common and DBAL, since they may vary in the future.

[2.0][DDC-362] Fixed missing namespace declaration on __call method of EntityRepository. Thanks Marcel Walter for the patch.

[2.0] DDC-358 - Refactored UnitOfWork Event triggering capabilities -  Revert preUpdate change - Its not good!

[2.0] DDC-358 - Refactored UnitOfWork Event triggering capabilities -  Removed check for EntityManager instance. This is deep in the code and can hardly be get wrong.

[2.0] Applied convention over configuration using default cache implementation if none is defined in AnnotationReader.

[2.0] DDC-338 - Changed DQL Parser to comply with ordered collections when they are fetch joined (OMG, thanks to roman and guilherme for the detailed discussion on how to implement this)

[2.0][DDC-316][DDC-346] Implemented support to first result and max results aswell as different hydration mode support in orm:run-dql task

[2.0] DDC-336 DDC-337 - Changed @OrderBy annotation to take a DQL not SQL snippet, restrict it to field names and positional orderings. Changed all test-cases and added a test-case that shows the behaviour for OneToMany JoinedSubclassPersister Managed Entities.

[2.0] DDC-337 - Collections that are fetched through StandardEntityPersister and ordered are sorted by any given ORDER BY snippet. Now only the DQL Parser is missing in this regard.

[2.0] DDC-337 - Collections that are fetched through StandardEntityPersister and ordered are sorted by any given ORDER BY snippet. Now only the DQL Parser is missing in this regard.

[2.0] DDC-336 - Support specification of an OrderBy SQL snippet in OneToMany and ManyToMany Associations in Annotation, XML and YAML Drivers

[2.0]  DDC-330 - Fix SIZE(collectionValueExpression) using a COUNT(field) to COUNT(*) because in many to many scenarios and with several join columns a COUNT(fieldA, fieldB) would have been generated, which is not valid sql.