Fix default target destination when using "." as path separator

Issue: SPR-11660
Polish
Improve transaction management for @Sql scripts

Prior to this commit, the support for SQL script execution via @Sql
provided an algorithm for looking up a required
PlatformTransactionManager to use to drive transactions. However, a
transaction manager is not actually required for all testing scenarios.

This commit improves the transaction management support for @Sql so
that SQL scripts can be executed without a transaction if a transaction
manger is not present in the ApplicationContext. The updated algorithm
now supports the following use cases.

 - If a transaction manager and data source are both present (i.e.,
   explicitly specified via the transactionManager and dataSource
   attributes of @SqlConfig or implicitly discovered in the
   ApplicationContext based on conventions), both will be used.

 - If a transaction manager is not explicitly specified and not
   implicitly discovered based on conventions, SQL scripts will be
   executed without a transaction but requiring the presence of a data
   source. If a data source is not present, an exception will be thrown.

 - If a data source is not explicitly specified and not implicitly
   discovered based on conventions, an attempt will be made to retrieve
   it by using reflection to invoke a public method named
   getDataSource() on the transaction manager. If this attempt fails,
   an exception will be thrown.

 - If a data source can be retrieved from the resolved transaction
   manager using reflection, an exception will be thrown if the
   resolved data source is not the data source associated with the
   resolved transaction manager. This helps to avoid possibly
   unintended configuration errors.

 - If @SqlConfig.transactionMode is set to ISOLATED, an exception will
   be thrown if a transaction manager is not present.

Issue: SPR-11911
Polish
Polish view controller MVC config
Add default ViewResolver to MVC Java config

Since the MVC Java config always registers a ViewResolver (composite)
bean, at a very minimum we must add an InternalResourceViewResolver
consistent with default DispatcherServlet configuration and by
extension with the MVC namespace which falls back on DispatcherServlet
implicity if no <view-resolvers> element is present.

Issue: SPR-7093
Enhance ParameterizableViewController

This change two new capabilities to ParameterizableViewController:

 - configure a View instance (in addition to view name)
 - configure response status code

The status code may be useful to send a 404 while also writing to the
body using a view.

The status code may also be used to override the redirect status code
of RedirectView. Even today it's possible to configure a "redirect:"
prefixed view name but the status code could not be selected. When a
3xx status is set, the code is passed on to the RedirectView while the
view name is automatically prefixed with "redirect:" (if not already).

For full control over RedirectView it is now also possible to
parameterize the controller with a View instance.

As one more possible resulting variation, given status 204 and no view
the request is considered handled (controller returns null).

This change is preparation for SPR-11543.
Add propagateQueryParams property to RedirectView

This change makes it possible to configure RedirectView such that the
query string of the current request is added to the target URL.

This change is preparation for SPR-11543.
Enhance view controller MVC config

This change adds support for configuring redirect view controllers and
also status controllers to the MVC Java config and the MVC namespace.

Issue: SPR-11543
Add "-configurer" suffix to view configurer element names

Issue: SPR-7093
Allow interceptors with excludePathPattern only

Issue: SPR-11130
Polish interceptor registration MVC config
Add guidance on URI vars and suffix pattern matching

Issue: SPR-11728
Add @Ignored temporarily to Jetty SockJS tests
Fix typo
Reduce code duplication in MergedSqlConfig
Update documentation with MVC config view resolution examples

Issue: SPR-11989
MVC config doc updates
Polishing
Polish log statements for TransactionContext