Merge unordered changes, including fixes for Boost.TR1.

Merged revisions 55099-55100,55132,55138,55184-55185 via svnmerge from 
https://svn.boost.org/svn/boost/trunk

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  r55099 | danieljames | 2009-07-22 23:37:52 +0100 (Wed, 22 Jul 2009) | 1 line
  
  Fix the insert tests when there is a small number of buckets.
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  r55100 | danieljames | 2009-07-22 23:38:08 +0100 (Wed, 22 Jul 2009) | 1 line
  
  Adjust the unordered defaults so that emplace takes more parameters and less buckets are created by default.
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  r55132 | danieljames | 2009-07-23 18:53:59 +0100 (Thu, 23 Jul 2009) | 1 line
  
  Remove the emulation of single argument C++0x std::pair constructor.
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  r55138 | danieljames | 2009-07-23 23:17:20 +0100 (Thu, 23 Jul 2009) | 1 line
  
  Try to work around an odd Visual C++ 8 bug.
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  r55184 | danieljames | 2009-07-26 19:59:33 +0100 (Sun, 26 Jul 2009) | 1 line
  
  Some extra changelog notes.
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  r55185 | danieljames | 2009-07-26 20:00:40 +0100 (Sun, 26 Jul 2009) | 1 line
  
  Update the reference documentation to mention that emplace is now emulated.
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[SVN r55189]

doc/changes.qbk

@@ -79,8 +79,13 @@ First official release.
   the length right if it changes again in the future.
 * [@https://svn.boost.org/trac/boost/ticket/1978 Ticket 1978]:
   Implement `emplace` for all compilers.
+* [@https://svn.boost.org/trac/boost/ticket/2908 Ticket 2908],
+  [@https://svn.boost.org/trac/boost/ticket/3096 Ticket 3096]:
+  Some workarounds for old versions of borland, including adding explicit
+  destructors to all containers.
+* [@https://svn.boost.org/trac/boost/ticket/3082 Ticket 3082]:
+  Disable incorrect Visual C++ warnings.
 * Better configuration for C++0x features when the headers aren't available.
-* [@https://svn.boost.org/trac/boost/ticket/2908 Ticket 2908]:
-  Add explicit destructors to all containers.
+* Create less buckets by default.
 
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