Chapter 27 covered @Required and RequiredAnnotationBeanPostProcessor but
did not hold together as a chapter unto itself.  The IoC chapter already
makes mention of @Required and RequiredAnnotationBeanPostProcessor,
though not in quite as much detail as Chapter 27 did.  Links have been
updated throughout to reference these sections and Chatper 27 has been
eliminated entirely.

Prior to change, there were 175 instances of <methodname/> elements
including parentheses (e.g.: <methodname>foo()</methodname>, and
36 instances without.

Now all 211 instances include parentheses for consistency.

Documentation now:

- Reflects generic use of ApplicationListener interface

- Demonstrates use of ApplicationEventPublisher(Aware) instead of
  ApplicationContext(Aware) for publishing custom events

- Provides a more complete narrative as to how each of the publisher,
  listener, and event objects interact with one another

<programlisting/> elements must contain no newlines at beginning or end.
The following is an example of what not to do:

    <programlisting><![CDATA[
package com.foo.bar;

class XFoo implements Foo<X> {
}]]>
    </programlisting>

This leaves newlines at the beginning and end of the programlisting
panel within the PDF. Instead, do it like this:

    <programlisting><![CDATA[package com.foo.bar;

class XFoo implements Foo<X> {
}]]></programlisting>

- The sentence at the end of section 5.5.5 now refers to the
  <mvc:annotation-driven conversion-service="..."/> example at the end
  of section 5.6.

- The sentence at the end of section 5.5.5 refers to the
  FormatterConversionServiceFactoryBean section that follows.

- 'dependency-check' attribute of the <bean/> element was removed
  in the spring-beans-3.0 XSD; documentation now reflects this change.

- 'autodetect' was removed from the enumeration of possible values
  for autowire mode in the spring-beans-3.0 XSD; documentation now
  reflects this change.

Note that the underlying functionality for these values has not been
removed from Spring Core.  Users of Spring 3.0 who still need this
support may choose to use spring-beans-2.5.xsd in order to preserve
backward-compatibility.

added "contentLength()" method to Resource abstraction; URL-based Resource variants introspect "last-modified" and "content-length" response headers (SPR-5465); refined "exists()" check for UrlResource (HEAD request) and ClassPathResource (URL resolution)

Also change 'JEE' -> 'Java EE'

It's not clear why the asterisk would be necessary, as 'lastName'
alone should match all errors associated with that field.

Note that SPR-7433 has also been created to consider removing this
chapter entirely.