prepare release

doc/VERSIONS.txt

-2.8.6 (..., 2015): improved robustness of spatial searches (extruded meshes,
+2.8.6 (March 9, 2015): improved robustness of spatial searches (extruded meshes,
 geometry coherence); improved reproductibility of 2D and 3D meshes; added
 support for high resolution ("retina") graphics; interactive graph point
 commands; on-the-fly creation of onelab clients in scripts; general periodic

doc/gmsh.html

@@ -29,7 +29,7 @@ generator with built-in pre- and post-processing facilities</h1>
 
 <h4 align="center">Christophe Geuzaine and Jean-François Remacle</h4>
 
-<h4 align="center">Version 2.8.5, July 9 2014</h4>
+<h4 align="center">Version 2.8.6, March 9 2015</h4>
 
 <center>
   <a href="#Description">Description</a> |
@@ -69,14 +69,14 @@ the <a href="doc/LICENSE.txt">GNU General Public License
   <li>
     <p class="highlight">
       <strong>Download current stable release</strong>: Windows
-      <a href="bin/Windows/gmsh-2.8.5-Windows.zip"><strong>32 bit</strong></a> /
-      <a href="bin/Windows/gmsh-2.8.5-Windows64.zip"><strong>64 bit</strong></a>,
+      <a href="bin/Windows/gmsh-2.8.6-Windows.zip"><strong>32 bit</strong></a> /
+      <a href="bin/Windows/gmsh-2.8.6-Windows64.zip"><strong>64 bit</strong></a>,
       Linux
-      <a href="bin/Linux/gmsh-2.8.5-Linux.tgz"><strong>32 bit</strong></a> /
-      <a href="bin/Linux/gmsh-2.8.5-Linux64.tgz"><strong>64 bit</strong></a>,
-      <a href="bin/MacOSX/gmsh-2.8.5-MacOSX.dmg"><strong>Mac OS X</strong></a>
+      <a href="bin/Linux/gmsh-2.8.6-Linux.tgz"><strong>32 bit</strong></a> /
+      <a href="bin/Linux/gmsh-2.8.6-Linux64.tgz"><strong>64 bit</strong></a>,
+      <a href="bin/MacOSX/gmsh-2.8.6-MacOSX.dmg"><strong>Mac OS X</strong></a>
       and
-      <a href="src/gmsh-2.8.5-source.tgz"><strong>source code</strong></a>
+      <a href="src/gmsh-2.8.6-source.tgz"><strong>source code</strong></a>
     </p>
     <p>
       <em>A <a href="doc/texinfo/gmsh.html#Tutorial"><strong>tutorial</strong></a>