Update unordered changelog.

svn path=/trunk/libs/unordered/; revision=48853
Change includes of <cmath> to <boost/config/no_tr1/config.hpp>.

Previously if Boost.TR1 was in the include path then including <cmath> pulls in all the new TR1 math functions, which in turn also requires linking to an external library.  With auto-linking support this requires that library to have been built and be present in the library search path, even if the actual library under use is header only.

Fixes #2392.

svn path=/trunk/boost/unordered/; revision=49254
Continuing merge of CMake build system files into trunk with the encouragement of Doug Gregor

svn path=/trunk/libs/unordered/; revision=49510
Updating CMake files to latest trunk. Added dependency information for regression tests and a few new macros for internal use.

svn path=/trunk/libs/unordered/; revision=49627
Updating dependency information for modularized libraries.

svn path=/trunk/libs/unordered/; revision=49628
Explicitly specify the template parameters in the unordered container friend, in order to avoid some warnings.

svn path=/trunk/boost/unordered/; revision=49735
Use pragmas to suppress a Visual C++ warning.

svn path=/trunk/boost/unordered/; revision=49756
Use the new swap library.

svn path=/trunk/boost/unordered/; revision=49770
Extra tests for equality with different hash functions.

svn path=/trunk/libs/unordered/; revision=49924
Document operator==/operator!= as undefined if the equality predicates aren't equivalent. Fixes #2237.

svn path=/trunk/libs/unordered/; revision=49925
Use a larger prime number list. Fixes #1710

svn path=/trunk/boost/unordered/; revision=49926
Use aligned storage for the value.

svn path=/trunk/boost/unordered/; revision=49927
Wild stab at getting destruction working on more compilers.

svn path=/trunk/boost/unordered/; revision=49955
Workaround another in-place destruction.

svn path=/trunk/boost/unordered/; revision=50029
Add support for initializer lists to config and the unordered containers.

svn path=/trunk/boost/unordered/; revision=50118
Remove a tab.

svn path=/trunk/boost/unordered/; revision=50452
Add Jamfile to build PDF versions of all the docs.
Tweaked some existing Jamfiles so that PDF build finds all the necessary image files etc.
Tweaked fo.xsl to provide more options by default, and improve formatting.

svn path=/trunk/libs/unordered/; revision=51104
Use the new 'boost:' links for the hash, unordered and quickbook documentation.

svn path=/trunk/libs/unordered/; revision=51262
Don't copy images for the standalone hash and unordered documentation, was only
really required before the libraries were integrated into boost.

svn path=/trunk/libs/unordered/; revision=51263
Add PDF generation options to fix external links to point to the web site.
Added a few more Boostbook based libs that were missed first time around.
Fixed PDF naming issues.

svn path=/trunk/libs/unordered/; revision=51284