Update asio's one-line description.

[SVN r47741]

libs/libraries.htm

@@ -86,9 +86,9 @@ how to download, build, and install the libraries.</p>
     <li><a href="array/index.html">array</a> - STL compliant
         container wrapper for arrays of constant size, from
         Nicolai Josuttis.</li>
-    <li><a href="asio/index.html">asio</a> - Portable networking, including
-        sockets, timers, hostname resolution and socket iostreams, from
-        Chris Kohlhoff.</li>
+    <li><a href="asio/index.html">asio</a> - Portable networking and other low-level
+        I/O, including sockets, timers, hostname resolution, socket iostreams, serial
+        ports, file descriptors and Windows HANDLEs, from Chris Kohlhoff.</li>
     <li><a href="assign/index.html">assign</a> - Filling containers
         with constant or generated data has never been
         easier, from Thorsten Ottosen.
@@ -483,9 +483,9 @@ how to download, build, and install the libraries.</p>
 <h3><a name="Concurrent">Concurrent</a> Programming</h3>
 
 <ul>
-    <li><a href="asio/index.html">asio</a> - Portable networking, including
-        sockets, timers, hostname resolution and socket iostreams, from
-        Chris Kohlhoff.</li>
+    <li><a href="asio/index.html">asio</a> - Portable networking and other low-level
+        I/O, including sockets, timers, hostname resolution, socket iostreams, serial
+        ports, file descriptors and Windows HANDLEs, from Chris Kohlhoff.</li>
     <li><a href="interprocess/index.html">interprocess </a>- Shared memory, memory mapped files,
     process-shared mutexes, condition variables, containers and allocators, from Ion Gazta&ntilde;aga</li>
     <li><a href="../doc/html/mpi.html">MPI</a> - Message Passing Interface library, for use in distributed-memory parallel application programming, from Douglas Gregor and Matthias Troyer.</li>
@@ -578,9 +578,9 @@ how to download, build, and install the libraries.</p>
 
 <h3><a name="IO">Input/Output</a></h3>
 <ul>
-    <li><a href="asio/index.html">asio</a> - Portable networking, including
-        sockets, timers, hostname resolution and socket iostreams, from
-        Chris Kohlhoff.</li>
+    <li><a href="asio/index.html">asio</a> - Portable networking and other low-level
+        I/O, including sockets, timers, hostname resolution, socket iostreams, serial
+        ports, file descriptors and Windows HANDLEs, from Chris Kohlhoff.</li>
     <li><a href="assign/index.html">assign</a> - Filling containers
     with constant or generated data has never been
     easier, from Thorsten Ottosen.