Added 3.7.1 to header

Author: basvodde

_includes/header.html

@@ -40,8 +40,8 @@ <h2>CppUTest unit testing and mocking framework for C/C++</h2>
         </nav>
 
         <section id="downloads">
-          <a href="https://github.com/cpputest/cpputest.github.io/blob/master/releases/cpputest-3.7.zip?raw=true" class="btn btn-inverse">Download Release 3.7 as .zip</a>
-          <a href="https://github.com/cpputest/cpputest.github.io/blob/master/releases/cpputest-3.7.tar.gz?raw=true" class="btn btn-inverse">Download Release 3.7 as .tar.gz</a>
+          <a href="https://github.com/cpputest/cpputest.github.io/blob/master/releases/cpputest-3.7.1.zip?raw=true" class="btn btn-inverse">Download Release 3.7 as .zip</a>
+          <a href="https://github.com/cpputest/cpputest.github.io/blob/master/releases/cpputest-3.7.1.tar.gz?raw=true" class="btn btn-inverse">Download Release 3.7 as .tar.gz</a>
           <a href="https://github.com/cpputest/cpputest.github.io/blob/master/releases/cpputest-3.8dev.zip?raw=true" class="btn btn-inverse">Download code of latest passing build as .zip</a>
           <a href="https://github.com/cpputest/cpputest.github.io/blob/master/releases/cpputest-3.8dev.tar.gz?raw=true" class="btn btn-inverse">Download code of latest passing build as .tar.gz</a>
         </section>