Update links in the iterator library. I haven't regenerated the documentation, but the changes should be in sync with the source files.

[SVN r41660]

doc/index.html

@@ -40,7 +40,7 @@ Lab</a>, <a class="reference external" href="http://www.styleadvisor.com">Zephyr
 <col class="field-body" />
 <tbody valign="top">
 <tr class="field"><th class="field-name">Abstract:</th><td class="field-body">The Boost Iterator Library contains two parts. The first
-is a system of <a class="reference external" href="../../../more/generic_programming.html#concept">concepts</a> which extend the C++ standard
+is a system of <a class="reference external" href="http://beta.boost.org/community/generic_programming.html#concept">concepts</a> which extend the C++ standard
 iterator requirements. The second is a framework of
 components for building iterators based on these
 extended concepts and includes several useful iterator
@@ -179,7 +179,7 @@ implement iterators, you probably wrote a <tt class="docutils literal"><span cla
 captures the core operations of your iterator.  In the new library
 design, you'll move those same core operations into the body of the
 iterator class itself.  If you were writing a family of iterators,
-you probably wrote a <a class="reference external" href="../../../more/generic_programming.html#type_generator">type generator</a> to build the
+you probably wrote a <a class="reference external" href="http://beta.boost.org/community/generic_programming.html#type_generator">type generator</a> to build the
 <tt class="docutils literal"><span class="pre">iterator_adaptor</span></tt> specialization you needed; in the new library
 design you don't need a type generator (though may want to keep it
 around as a compatibility aid for older code) because, due to the