Import latest changes to the unordered containers. Includes:

Copyright update.
Switch back to the version where the sentinel points to itself.
Remove alternative versions of swap.
Workaround a borland bug or two.
More consistent use of class/swap/template.
Avoid a few warnings.
Add a no-throw swap to the allocator for exception testing.


[SVN r3793]

include/boost/unordered/detail/allocator.hpp

@@ -1,5 +1,5 @@
 
-// Copyright 2005 Daniel James.
+// Copyright 2005-2007 Daniel James.
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 

include/boost/unordered/detail/hash_table.hpp

@@ -1,6 +1,6 @@
 
 // Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
-// Copyright (C) 2005-2006 Daniel James
+// Copyright (C) 2005-2007 Daniel James
 // Distributed under the Boost Software License, Version 1.0. (See accompanying
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
@@ -33,15 +33,6 @@
 
 #include <boost/mpl/aux_/config/eti.hpp>
 
-// See hash_table::swap() for details about this.
-#if !defined(BOOST_UNORDERED_SWAP_METHOD)
-#define BOOST_UNORDERED_SWAP_METHOD 3
-#endif
-
-#if BOOST_UNORDERED_SWAP_METHOD == 1
-#include <stdexcept>
-#endif
-
 #if BOOST_WORKAROUND(__BORLANDC__, <= 0x0551)
 #define BOOST_HASH_BORLAND_BOOL(x) (bool)(x)
 #else