Bump version to 2.4.1
More excludes
[DDC-2661] Fix bug in YamlDriver not passing options from id to mapField()
Merge branch 'DDC-2661' into 2.4
[DDC-2660] Fix error with NativeSQL, ResultSetMappingBuilder and Associations as Primary Key.
Merge branch 'DDC-2660' into 2.4
[DDC-2608][DDC-2662] Fix SequenceGenerator requiring "sequenceName" and now throw exception. Fix a bug in quoting the sequenceName.
Merge branch 'DDC-2608' into 2.4
[DDC-2668] Fix trim leading zero string
Merge branch 'DDC-2668' into 2.4
Added a failing test case for DDC-2759.
[DDC-2759] Fix regression in ArrayHydrator introduced in DDC-1884 at SHA c7b4c9bf0fbc5dca830e0a797cea470510def994
Merge branch 'DDC-2759' into 2.4
When the OptimisticLockingException is generated with the static function lockFailedVersionMismatch and the passed parameters are DateTime instances, the exception could not be thrown because the DateTime object is not implicitly converted to a string.
Removed unnecessary is_object() check
Merge branch 'DDC-2715' into 2.4
Release 2.4.1
memory optimizations
Merge tag 'v2.4.1' into goalio-2.4

v2.4.1
Merge branch 'goalio-2.4' of github.com:goalio/doctrine2 into goalio-2.4