Closes gh-12971

Closes gh-13101

Closes gh-13056

Some Quartz initialization scripts have comments in a different format.

This commit introduces a `comment-prefix` property that should be set by
the user if their target database has a script that contains those
unusual comments.

Closes gh-13041

* pr/13148:
  Polish

Closes gh-13148

See gh-13148

* pr/13036:
  Polish JpaProperties.determineDdlAuto()

Closes gh-13036

* pr/13143:
  Polish "Improve LDAP auto-configuration conditions"
  Improve LDAP auto-configuration conditions

Closes gh-13143

At present, auto-configuration of `LdapContextSource` is conditional on
presence of a `ContextSource` bean. However, there are valid use cases
which require multiple `ContextSource` bean, for instance
`PooledContextSource`. With the current arrangement, the
auto-configuration of `LdapContextSource` will back off if user provides
a `PooledContextSource` bean, while it would still be reasonable to
reuse the auto-configured `LdapContextSource`.

This commit improves `LdapContextSource` factory method return value and
condition to back off only if users actually provide a
`LdapContextSource` bean themselves.

See gh-13143

Previously, when an empty String was bound to a collection or
array of rich types it would fail as there was no converter capable
of creating a Collection<RichType> or RichType[] from the String.

This commit updates IndexedElementsBinder to apply special treatment
to empty String values. Now, when such a value is being processed,
an empty Collection or array is the result.

Closes gh-12965

* pr/13136:
  Polish "Improve LDAP auto-configuration"
  Improve LDAP auto-configuration

Closes gh-13136

Auto-configuration of LDAP's `LdapTemplate` is currently a part of
`LdapDataAutoConfiguration` which is conditional of presence of
`LdapRepository` (i.e. Spring Data LDAP). This arrangement isn't ideal
since the `LdapTemplate` is a part of Spring LDAP project, and therefore
should not be tied to Spring Data LDAP.

This commit improves and simplifies LDAP auto-configuration by moving
`LdapTemplate` configuration to `LdapAutoConfiguration`. Consequently,
`LdapDataAutoConfiguration` is not needed anymore and is removed.

See gh-13136

* pr/13137:
  Add .gitignore for Gradle Plugin module

Closes gh-13137

* pr/13144:
  Remove unnecessary semicolons

Closes gh-13144

* gh-11948:
  Polish "Auto-configure a ResourceConfig for Jersey endpoints if needed"
  Auto-configure a ResourceConfig for Jersey endpoints if needed

Closes gh-11948

See gh-11948

Closes gh-13145