updated docs

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%403860

docs/docs/api.xml

@@ -576,6 +576,10 @@
                   <name>get_files_in_directory_tree</name>
                   <link>dlib/dir_nav/dir_nav_extensions_abstract.h.html#get_files_in_directory_tree</link>
                </item>
+               <item>
+                  <name>get_parent_directory</name>
+                  <link>dlib/dir_nav/dir_nav_extensions_abstract.h.html#get_parent_directory</link>
+               </item>
             </sub>
          </item>
          <item>

docs/docs/term_index.xml

@@ -494,6 +494,8 @@
          <term file="dlib/dir_nav/dir_nav_kernel_abstract.h.html" name="listing_error"/>
          <term link="dlib/dir_nav/dir_nav_extensions_abstract.h.html#get_files_in_directory_tree" 
             name="get_files_in_directory_tree"/>
+         <term link="dlib/dir_nav/dir_nav_extensions_abstract.h.html#get_parent_directory" 
+            name="get_parent_directory"/>
          <term file="dlib/dir_nav/dir_nav_extensions_abstract.h.html" name="match_ending"/>
          <term file="dlib/dir_nav/dir_nav_extensions_abstract.h.html" name="match_all"/>