[2.0] Extracting Doctrine 1 schema conversion from orm:convert-mapping task to a orm:convert-d1-schema task

[2.0][DDC-426] Fixed issue with CliController that never notifies if run() executed successfully or not.

[2.0] Fixed issue with DQL that was not considering input parameter 10. Also added support to retrieve the generated AST.

[2.0] Fixed custom functions support that was failing to be processed. Also fixed syntax error of Function support.

[2.0] DDC-412 - Fixed YAML Driver not allowing multiple lifecycle callbacks per event. Backwards-incompatible change

[2.0] DDC-412 - Fixed YAML Driver not allowing multiple lifecycle callbacks per event. Backwards-incompatible change

[2.0] DDC-412 - Fixed YAML Driver not allowing multiple lifecycle callbacks per event. Backwards-incompatible change

[2.0] Code cleanups. Preparations for DDC-193. Fixed DDC-399, type configuration remains global for now but the irritating instance methods on the Configuration have been removed. Use Type::addType et al. Added TODOs for naming standards.

[2.0] Removed requirement to extend the Annotation base class, allowing any PHP class with an appropriate constructor to be used as an annotation.

[2.0] DDC-414 - Changed semantics of preUpdate Event to allow only changes to the entity changeset, not the internal state of the entity anymore.

[2.0] Give public access to the computed collection deletions and updates for possible use with the onFlush event.

[2.0] DDC-396 - Fixed bug with RESTRICT/NO ACTION and PHP NULL not valued as the same in Schema Foreign Key Diff

[2.0] Fix bug in detection of global Doctrine Cli Configuration finding the empty replacement configuration before the correct one.

[2.0] Added custom Entity repository, DiscriminatorColumn and DiscriminatorMap upport in AnnotationExporter

[2.0][DDC-395] Applied the provided patch of Jordi Boggiano removing some trailing whitespaces and fixing missing public keywords

[2.0] Fixed issue with AbstractFileDriver exporter that was generating files using backslashes instead of dots, preventing the other exporters to work correctly.

[2.0] Add missing Query::HINT_CUSTOM_OUTPUT_WALKER - it wasn't possible to change the output walker before without extending and overwriting one large method in Query