DATACMNS-483 - Added test case for recursive object wrapper resolution.

AbstractRepositoryMetadata now correctly resolves the domain type in case it's nested in multiple levels of wrapper types.
DATACMNS-491 - Add support for configuring null handling hints in Sort.Order.

Null handling hints can now be configured on Order as being either NATIVE (we let the data store decide how to order nulls), NULLS_FIRST or NULLS_LAST.

This is the foundation for custom null-handling in other data store support modules like SD JPA and SD MongoDB.

Original pull request: #79.
DATACMNS-491 - Polishing of null handling API in Sort.Order.

Fixed @since-tags, added author tags where appropriate, fixed copyright header in SortUnitTests. Removed unnecessary formatting line comments. Renamed nullHandlingHint to nullHandling inside Order. Changed builder method signatures to be consistent with with(…) methods defining the direction.

Fixed copy & paste test in SortUnitTests.

Original pull request: #79.
DATACMNS-492 - RepositoryConfigurationDelegate now expects an Environment.

Added a constructor to RepositoryConfigurationDelegate that takes an additional Environment instance to make sure we can equip ClasspathScanningCandidateComponentProviders with Environments to make sure they only find components matching the environment.

Retain the old constructor by defaulting to the Environment the ResourceLoader potentially contains or even a StandardEnvironment in worse cases. This is primarily to not break existing clients. Those should be upgraded to use the new constructor, of course.

Needed to add an additional guard in BeanDefinitionRegistrarSupport as Spring 3.2.8 fails to invoke EnvironmentAware (filed SPR-11744 for that). This should be removed once we upgrade to Spring 3.2.9.

Related pull request: #80.
Related tickets: DATACMNS-493, DATACMNS-494, SPR-11744.
DATACMNS-496 - Version.parse(…) now drops non-numeric artifacts.

Version parsing failed when given version contained non-numeric parts (like 2.0.0-rc1). We now strip everything after the first non numeric part to create a logical version equivalent of the source String.

Original pull request: #81.
DATACMNS-489 - Support for Future<T> as return value wrapper for repository methods.

Added a converter to process a NullableWrapper into a Future by producing an AsyncResult. This is to support repository methods annotated with @Async and returning a Future<T>. With Spring's asynchronous method invocation support activated this will cause the repository method being executed asynchronously.

Related tickets: DATACMNS-483, SPR-11715.