DDC-496 Finished first versions of platform and schema manager for DB2, DDC-528 Added support for PDO_IBM driver, passing all but 3 tests that are related to CLOB fields

[2.0] DDC-341 - Added Composite Model-Set and 3 tests, fixed two bugs in SqlWalker with Composite Key support

[2.0] DDC-341 - Added Composite Model-Set and 3 tests, fixed two bugs in SqlWalker with Composite Key support

[2.0] DDC-484 - Fix reference to Doctrine\ORM\ORMException in ProxyException, added two unit-tests for missing tests of ProxyException throws

[2.0] Fixed and added some missing/wrong docblocks. Renamed Assigned to AssignedGenerator as scheduled to be renamed.

[2.0][DDC-354][DDC-425] Fixed. Encapsulated SQL logging better in the DBAL. Added binding types to DBAL mapping types as well as using these binding types in the persisters. Query and NativeQuery now support PDO binding types as well as DBAL mapping types when binding parameters.

[2.0][DDC-458] Fixed issue with IN () support when providing numeric values separated by comma without spaces.

[2.0] DDC-239 - Added several new mapping validations for duplicate association/field and or column name definitions, and in combination with the discriminator column name.

[2.0] DDC-407 - Add regression-test to fix that Scalar-Results are 1-based, Add ScalarResult with Scalar Field Hydration Test

[2.0] DDC-390 Fix SequenceGeneratorTest which wasnt testing anything before :-) Now showing that Sequence Generator works with allocation sizes larger than 1

[2.0] Improving EntityGenerated: added normal doc blocks above annotations(even if annotations aren't generated), adding type hinting, added generation of default values for properties

[2.0] Refactoring code for reading multiple sources of mapping information from ClassMetadataExporter to a new ClassMetadataReader tool so it can be used to read mapping information easily from multiple different sources. This is used for generating repositories, converting mapping information, generating entity stubs, etc. Generally though, it is useful to be able to read the information for some mapping files into an array of ClassMetadataInfo instances without it being bound to the ORM and the metadata referenced by the EntityManager ClassMetadataFactory

[2.0] DDC-318 - Fixed idempotency issues with AnnotationDriver::getAllClassNames() even across multiple instances using the same metadata paths.

[2.0] DDC-283 - Add two events in SchemaTool that allow to hook into the generated Schema representation, possibly modifying or reacting to it in userland or extensions code.

[2.0] Renaming orm:generate-entity-stubs to orm:generate-entities to be consistent and fixed a few bugs

[2.0][DDC-359] Adding some tests for CliController and fixing bug with empty option value .i.e "--option="

[2.0] Refactoring AnnotationExporter code to a EntityGenerator tool which is used now in orm:convert-mapping to generate annotated entities and also used in orm:generate-entity-stubs for generating entity classes and properties/method stubs from mapping information