Add option to explicitly disable ICU support.

Update docs to describe new ICU config support.

[SVN r65489]

doc/html/boost_regex/ref/posix.html

@@ -165,7 +165,7 @@
 <a name="regcomp"></a><p>
       </p>
 <a name="boost_regex.ref.posix.regcomp"></a><h5>
-<a name="id1171579"></a>
+<a name="id1039533"></a>
         <a class="link" href="posix.html#boost_regex.ref.posix.regcomp">regcomp</a>
       </h5>
 <p>
@@ -379,7 +379,7 @@
 <a name="regerror"></a><p>
       </p>
 <a name="boost_regex.ref.posix.regerror"></a><h5>
-<a name="id1172101"></a>
+<a name="id1040055"></a>
         <a class="link" href="posix.html#boost_regex.ref.posix.regerror">regerror</a>
       </h5>
 <p>
@@ -467,7 +467,7 @@
 <a name="regexec"></a><p>
       </p>
 <a name="boost_regex.ref.posix.regexec"></a><h5>
-<a name="id1172236"></a>
+<a name="id1040191"></a>
         <a class="link" href="posix.html#boost_regex.ref.posix.regexec">regexec</a>
       </h5>
 <p>
@@ -537,7 +537,7 @@
 <a name="regfree"></a><p>
       </p>
 <a name="boost_regex.ref.posix.regfree"></a><h5>
-<a name="id1172353"></a>
+<a name="id1040307"></a>
         <a class="link" href="posix.html#boost_regex.ref.posix.regfree">regfree</a>
       </h5>
 <p>
@@ -547,7 +547,7 @@
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 <td align="left"></td>
-<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2007 John Maddock<p>
+<td align="right"><div class="copyright-footer">Copyright &#169; 1998 -2010 John Maddock<p>
         Distributed under the Boost Software License, Version 1.0. (See accompanying
         file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
       </p>