MBeanInfoAssembler impls expose actual method parameter names if possible

Issue: SPR-9985
ThreadPoolExecutorFactoryBean exposes "createExecutor" method for custom ThreadPoolExecutor subclasses

Issue: SPR-9435
Added further MySQL error code for DataIntegrityViolationException

Issue: SPR-9237
DisposableBeanAdapter detects "shutdown" as a destroy method as well (for EHCache CacheManager setup)

 Issue: SPR-9713
Updated resolvePath javadoc to reflect Environment-based placeholder resolution

Issue: SPR-9455
ResourcePropertyResource accepts EncodedResource for properties files with a specific encoding

Also added constructor with Charset argument to EncodedResource.

Issue: SPR-10096
Removed pre-JDK-1.5 checks
Polishing
Final preparations for 3.2.1
Change merge.into project dependencies to provided

Change 'compile' dependencies to 'provided' for projects that are
merged into other projects. This seems to prevent '-sources' and
'-javadoc' jars from appearing on the classpath which can break
javadoc generation.
Added note on thread safety to TypeConverter and SimpleTypeConverter javadoc

 Issue: SPR-8659
Made EncodedResource based variant public; consistently detect XML properties across all variants

Issue: SPR-9078
Avoid UnsupportedOperationEx. with active SecurityManager

Issue: SPR-9970
Merge branch 'SPR-9970' into 3.2.x

* SPR-9970:
  Avoid UnsupportedOperationEx. with active SecurityManager
Completed changelog entries for 3.2.1
first support for meta-annotations for the integration tests

Issue: SPR-7827

prior this commit, there was no support for meta-annotations in the Spring Intergation tests, now the @ContextConfiguration annotation is searched also in meta-annotations.

Eg: you can write:
---------------
@ContextConfiguration([...]) // config for HSQLDB environment
public @interface InRamEnvironment
---------------
@ContextConfiguration([...]) // config for common-core part
public @interface CommonCoreIntegrationTest
---------------
@CommonCoreIntegrationTest
@InRamEnvironment
public class OneBatchTest {

[...] // actual test methods
First documentation for meta-annotations support on spring-test