Announce that 4.1 supports clang on macos

Installation/CHANGES

@@ -6,8 +6,11 @@ Release date:
 
 * Installation
 
-  - CGAL-4.1 no longer supports the Intel Compiler version 11.0. The Intel
-    Compiler version 12.0 is supported instead.
+  - Additional supported platforms:
+
+      - The Apple Clang compiler versions 3.1 and 3.2 are now supported on
+        Mac OS X.
+
 
   - Improved configuration for essential and optional external third party
     software
@@ -20,19 +23,20 @@ Release date:
     features.
 
 
+* 2D Arrangement
+
+  - Improved the implementation of the incremental randomized trapezoidal
+    decomposition point-location strategy. The new implementation enables point
+    location in unbounded arrangements. It constructs a search structure of
+    guaranteed linear size with guaranteed logarithmic query time.
+
+
 * 2D Convex Hulls and Extreme Points
 
   - Speed up the preprocessing stage of the Akl-Toussaint implementation (used
     by the free function convex_hull_2 when forward iterators are provided as
     input).
 
-* 2D Arrangements
-
-  - Improved the implementation of the incremental randomized
-    trapezoidal decomposition point-location strategy. The new
-    implementation enables point location in unbounded arrangements. It
-    constructs a search structure of guaranteed linear size with
-    guaranteed logarithmic query time. 
 
 * Combinatorial Maps
 

Installation/changes.html

@@ -109,6 +109,12 @@ David A. Wheeler's 'SLOCCount'</a>, restricted to the <code>include/CGAL/</code>
 
 <h3>Installation</h3>
 <ul>
+<li>Additional supported platforms:
+  <ul>
+    <li>The Apple Clang compiler versions 3.1 and 3.2 are now supported on
+      Mac OS X.</li>
+  </ul>
+</li>
 <li>Improved configuration for essential and optional external third party software</li>
 <li>Added more general script to create CMakeLists.txt files: <tt>cgal_create_CMakeLists</tt></li>
 <li>Availability tests for C++11 features are now performed with the help of <a href="http://www.boost.org/libs/config">Boost.Config</a>. A Boost version of 1.40.0 or higher is needed to use C++11 features.</li>