Merge in support for equality operators for the unordered containers and

hopefully better cross-platform support.

Merged revisions 44778-44835,44837-44918 via svnmerge from 
https://svn.boost.org/svn/boost/branches/unordered/trunk

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  r44778 | danieljames | 2008-04-26 17:15:44 +0100 (Sat, 26 Apr 2008) | 2 lines
  
  Remove a trailing comma.
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  r44779 | danieljames | 2008-04-26 17:23:51 +0100 (Sat, 26 Apr 2008) | 1 line
  
  Merge in support for equality operators.
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  r44780 | danieljames | 2008-04-26 17:28:44 +0100 (Sat, 26 Apr 2008) | 1 line
  
  Use my own list container to avoid working around STL container bugs.
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  r44833 | danieljames | 2008-04-28 08:03:43 +0100 (Mon, 28 Apr 2008) | 1 line
  
  Better equality tests.
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  r44834 | danieljames | 2008-04-28 08:04:03 +0100 (Mon, 28 Apr 2008) | 1 line
  
  Remove a superfluous check.
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  r44835 | danieljames | 2008-04-28 08:04:21 +0100 (Mon, 28 Apr 2008) | 1 line
  
  Add equality reference documentation.
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  r44916 | danieljames | 2008-04-30 08:16:52 +0100 (Wed, 30 Apr 2008) | 1 line
  
  New version of list.hpp
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  r44917 | danieljames | 2008-04-30 08:18:31 +0100 (Wed, 30 Apr 2008) | 1 line
  
  Support compilers without ADL in the compile tests.
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  r44918 | danieljames | 2008-04-30 08:25:20 +0100 (Wed, 30 Apr 2008) | 7 lines
  
  Change the typedef of buffered functions as it was confusing MSVC 6.5
  
  get_allocator wasn't compiling when the allocator workaround is used because it
  couldn't cast from the wrapped allocator to an allocator of another type. So
  use value_alloc_ when it's available (it's only unavailable on compilers with
  C++0x support, which don't require the workaround).
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[SVN r44919]

test/unordered/equivalent_keys_tests.cpp

@@ -8,7 +8,7 @@
 #include "../helpers/test.hpp"
 #include <algorithm>
 #include <map>
-#include <list>
+#include "../helpers/list.hpp"
 #include "../helpers/tracker.hpp"
 #include "../helpers/invariants.hpp"
 
@@ -57,7 +57,7 @@ UNORDERED_AUTO_TEST(set_tests)
 
 UNORDERED_AUTO_TEST(map_tests)
 {
-    typedef std::list<std::pair<int const, int> > values_type;
+    typedef test::list<std::pair<int const, int> > values_type;
     values_type v[5];
     v[0].push_back(std::pair<int const, int>(1,1));
     v[1].push_back(std::pair<int const, int>(28,34));