Allow specifing the default conversion using either base units or units.

svn path=/trunk/boost/units/; revision=52773
Merge cmake files release -> trunk.

svn path=/trunk/libs/units/; revision=52866
Minor cleanup/doc tweaks

svn path=/trunk/boost/units/; revision=53125
Allow printing to wostream.  Fixes #3089.

svn path=/trunk/boost/units/; revision=53293
Allow absolute to be printed to std::wostream.  Fixes #3089

svn path=/trunk/boost/units/; revision=53577
Supress warning in conversions.

svn path=/trunk/boost/units/; revision=54594
Loosen the requirements on atan2.  Fixes #3258

svn path=/trunk/boost/units/; revision=54873
Loosen requirements on signbit to 0/nonzero instead of 0/1

svn path=/trunk/libs/units/; revision=55097
Fix msvc-7.1 regression

svn path=/trunk/libs/units/; revision=55140
Fix bug in handling of chained conversions involving a non-base homogeneous unit.

svn path=/trunk/boost/units/; revision=55151
Copyrights on CMakeLists.txt to keep them from clogging up the inspect
reports.  This is essentially the same commit as r55095 on the release
branch.


svn path=/trunk/libs/units/; revision=55159
Fix bug in the code for finding a basis for a set of base units.

svn path=/trunk/boost/units/; revision=55573
Use base_unit_info when computing the name of a scaled base_unit.  Fixes #3360.

svn path=/trunk/boost/units/; revision=55698
add base unit for pound-force

svn path=/trunk/boost/units/; revision=56125
rm cmake from trunk.  I'm not entirely sure this is necessary to satisfy the inspect script, but I'm not taking any chances, and it is easy to put back

svn path=/trunk/libs/units/; revision=56942
Make the tests more strict about warnings

svn path=/trunk/libs/units/; revision=57388
Turn on struct warning checks for all versions of msvc

svn path=/trunk/libs/units/; revision=57389
Suppress warnings on msvc-7.1

svn path=/trunk/libs/units/; revision=57618
Get rid of the MPL assertions in doxygen generated docs

svn path=/trunk/libs/units/; revision=59795
Merge the units/autoprefix branch back to the trunk. Fixes #3660. Fixes #3707

svn path=/trunk/boost/units/; revision=62532