Added cpp11 tag to the docs and also updated them to include the new

running_gradient object.

docs/docs/algorithms.xml

@@ -58,6 +58,7 @@
          <item>rand</item> 
          <item>median</item> 
          <item>running_stats</item> 
+         <item>running_gradient</item> 
          <item>running_scalar_covariance</item> 
          <item>mean_sign_agreement</item> 
          <item>correlation</item> 
@@ -475,6 +476,20 @@
       </component>
       
       
+   <!-- ************************************************************************* -->
+
+      <component cpp11="true">
+         <name>running_gradient</name>
+         <file>dlib/statistics/running_gradient.h</file>
+         <spec_file link="true">dlib/statistics/running_gradient_abstract.h</spec_file>
+         <description>
+                This object is a tool for estimating if a noisy sequence of numbers is
+                trending up or down and by how much.  It does this by finding the least
+                squares fit of a line to the data and then allows you to perform a
+                statistical test on the slope of that line.
+         </description>
+      </component>
+      
    <!-- ************************************************************************* -->
 
       <component>

docs/docs/dlib.css

@@ -105,6 +105,14 @@ ul.tree  li ul { margin-left:10px; padding:0px; }
 li#term { list-style: none; }
 
 
+span.cpp11
+{
+   color: #008000;
+   font-family: sans-serif;
+   font-size: 0.8em;
+   margin-left: 0.3em;
+}
+
 div.include_file_more_details_wrapper
 {
    margin-top: 1em;

docs/docs/stylesheet.xsl

@@ -327,7 +327,8 @@
          <div class="component"  >
       
          <a href="#top"><font size='2'><center>[top]</center></font></a>
-         <h1 style="margin:0px;"><xsl:value-of select="name"/></h1>
+         <h1 style="margin:0px;"><xsl:value-of select="name"/> <xsl:if test="@cpp11 = 'true'"><span class='cpp11'>(C++11)</span></xsl:if>
+         </h1>
          <BR/>
          <BR/>
          <xsl:apply-templates select="description"/>

docs/docs/term_index.xml

@@ -257,6 +257,7 @@
          <term file="linear_algebra.html" name="find_projective_transform"     include="dlib/geometry.h"/>
          <term file="linear_algebra.html" name="rotation_matrix"           include="dlib/geometry.h"/>
          <term file="algorithms.html" name="running_stats"                 include="dlib/statistics.h"/>
+         <term file="algorithms.html" name="running_gradient"              include="dlib/statistics/running_gradient.h"/>
          <term file="algorithms.html" name="running_scalar_covariance"     include="dlib/statistics.h"/>
          <term file="algorithms.html" name="mean_sign_agreement"           include="dlib/statistics.h"/>
          <term file="algorithms.html" name="correlation"                   include="dlib/statistics.h"/>