Fix broken links in ref docs

spring-framework-reference/src/beans.xml

@@ -548,7 +548,7 @@ List userList service.getUsernameList();
         or id is supplied explicitly, the container generates a unique name for
         that bean. However, if you want to refer to that bean by name, through
         the use of the <literal>ref</literal> element or <link lang=""
-        linkend="beans-servicelocation">Service Location</link> style lookup,
+        linkend="beans-servicelocator">Service Locator</link> style lookup,
         you must provide a name. Motivations for not supplying a name are
         related to using <link linkend="beans-inner-beans">inner beans</link>
         and <link linkend="beans-factory-autowire">autowiring

spring-framework-reference/src/cache.xml

@@ -98,7 +98,7 @@ public Book findBook(ISBN isbn) {...}]]></programlisting>
 			In fact, depending on the JVM implementation or running conditions, the same hashCode can be reused for different objects, in the same VM instance.</para>
 			
 			<para>To provide a different <emphasis>default</emphasis> key generator, one needs to implement the <interfacename>org.springframework.cache.KeyGenerator</interfacename> interface.
-			Once <link linkend="cache-configuration">configured</link>, the generator will be used for each declaration that doesn not specify its own key generation strategy (see below).
+			Once configured, the generator will be used for each declaration that doesn not specify its own key generation strategy (see below).
 			</para>
 		</section>
 

spring-framework-reference/src/validation.xml

@@ -1101,7 +1101,7 @@ public interface ConversionService {
 </bean>]]></programlisting>
 
       <para>It is also common to use a ConversionService within a Spring MVC
-        application. See <xref linkend="format-configuring-FormatterRegistry"/>
+        application. See <xref linkend="format-configuring-FormattingConversionService"/>
         for details on use with
         <literal>&lt;mvc:annotation-driven/&gt;</literal>.</para>
 
@@ -1415,7 +1415,7 @@ public interface FormatterRegistrar {
 	    </para>
 	</section>
       
-    <section id="format-configuring-FormattingConverionService">
+    <section id="format-configuring-FormattingConversionService">
       <title>Configuring Formatting in Spring MVC</title>
 
       <para> In a Spring MVC application, you may configure a custom