updated docs

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%403714

docs/docs/containers.xml

@@ -538,6 +538,7 @@
          <item>static_map</item> 
          <item>sliding_buffer</item>
          <item>tuple</item>
+         <item>reference_wrapper</item>
          <item nolink="true">
             <name>smart pointers</name>
             <sub>
@@ -1201,6 +1202,22 @@
                
       </component>
       
+   <!-- ************************************************************************* -->
+
+      <component>
+         <name>reference_wrapper</name>
+         <file>dlib/ref.h</file>
+         <spec_file>dlib/ref.h</spec_file>
+         <description>
+                This is a simple object that just holds a reference to another object. 
+                It is useful because it can serve as a kind of "copyable reference".  
+         </description>
+         <examples>
+            <example>thread_function_ex.cpp.html</example>
+         </examples>
+               
+      </component>
+      
    <!-- ************************************************************************* -->
 
       <component>

docs/docs/term_index.xml

@@ -795,6 +795,9 @@
 
 
 
+         <term file="dlib/ref.h.html" name="ref"/>
+         <term file="dlib/ref.h.html" name="cref"/>
+         <term file="containers.html" name="reference_wrapper"/>
          <term file="containers.html" name="tuple"/>
          <term file="containers.html" name="type_safe_union"/>