Bumped version to 2.4 after release

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@764 fdac6126-5c0c-442c-9429-916003d36597

Doc/misc.docu

@@ -48,6 +48,7 @@ gcc 4.3.x<br>
 gcc 4.4.x<br>
 gcc 4.5.x<br>
 gcc 4.6.x<br>
+gcc 4.7.x<br>
 </td></tr>
 
 <tr><td> Windows </td><td> 
@@ -60,6 +61,12 @@ gcc 4.0 <br>
 gcc 4.2 <br>
 </td></tr>
 
+<tr><td> MacOS X <br>(Snow Leopard),... with clang</td><td> 
+XCode 4.3 <br>
+XCode 4.4 <br>
+XCode 4.5 <br>
+</td></tr>
+
 </table>
 
 \section req_libs Required libraries (Only for included Apps)