add stable link to latest documentation version

diff --git a/doc/api_manual_latest.html b/doc/api_manual_latest.html
new file mode 120000 (symlink)
index 0000000..46e4f45
--- /dev/null
+++ b/doc/api_manual_latest.html
@@ -0,0 +1 @@
+api_manual_v1.5.7.html
\ No newline at end of file

diff --git a/index.html b/index.html
index c3c3e785ff662df5bcccb6f37267b0f9a49f437f..0057deb139bd2837328b299197bcdf7f94eb992f 100644 (file)
--- a/index.html
+++ b/index.html
@@ -62,7 +62,7 @@
         <!-- Collect the nav links, forms, and other content for toggling -->
         <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
           <ul class="nav navbar-nav navbar-nav">
-            <li><a href="doc/api_manual_v1.5.7.html">API documentation</a></li>
+            <li><a href="doc/api_manual_latest.html">API documentation</a></li>
             <li><a href="#other-languages">Languages</a></li>
             <li class="dropdown">
               <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Index<span class="caret"></span></a>