prepare 2.8.4

doc/VERSIONS.txt

-2.8.4 (): small improvements and bug fixes.
+2.8.4 (Nov 21, 2013): reproductible 2D meshes; small improvements and bug fixes.
 
 2.8.3 (Sep 27, 2013): new quick access menu and multiple view selection in GUI;
 enhanced animation creation; many small enhancements and bug fixes.

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 2.8.3, September 27 2013</h4>
+<h4 align="center">Version 2.8.4, November 21 2013</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>Current stable release</strong>: Windows
-      <a href="bin/Windows/gmsh-2.8.3-Windows.zip"><strong>32 bit</strong></a> /
-      <a href="bin/Windows/gmsh-2.8.3-Windows64.zip"><strong>64 bit</strong></a>,
+      <a href="bin/Windows/gmsh-2.8.4-Windows.zip"><strong>32 bit</strong></a> /
+      <a href="bin/Windows/gmsh-2.8.4-Windows64.zip"><strong>64 bit</strong></a>,
       Linux
-      <a href="bin/Linux/gmsh-2.8.3-Linux.tgz"><strong>32 bit</strong></a> /
-      <a href="bin/Linux/gmsh-2.8.3-Linux64.tgz"><strong>64 bit</strong></a>,
-      <a href="bin/MacOSX/gmsh-2.8.3-MacOSX.dmg"><strong>Mac OS X</strong></a>
+      <a href="bin/Linux/gmsh-2.8.4-Linux.tgz"><strong>32 bit</strong></a> /
+      <a href="bin/Linux/gmsh-2.8.4-Linux64.tgz"><strong>64 bit</strong></a>,
+      <a href="bin/MacOSX/gmsh-2.8.4-MacOSX.dmg"><strong>Mac OS X</strong></a>
       and
-      <a href="src/gmsh-2.8.3-source.tgz"><strong>source code</strong></a>
+      <a href="src/gmsh-2.8.4-source.tgz"><strong>source code</strong></a>
     </p>
     <p>
       <em>A <a href="doc/texinfo/gmsh.html#Tutorial"><strong>tutorial</strong></a>