[geometry] creating branch of index

git-svn-id: http://svn.boost.org/svn/boost/branches/release@84240 b8fc166d-592f-0410-95f2-cb63ce0dd405
[geometry] creating branch of index (libs)

git-svn-id: http://svn.boost.org/svn/boost/branches/release@84241 b8fc166d-592f-0410-95f2-cb63ce0dd405
[geometry] merge of Boost.Geometry into release branch

git-svn-id: http://svn.boost.org/svn/boost/branches/release@84242 b8fc166d-592f-0410-95f2-cb63ce0dd405
Merged from trunk: By default, when 32 bit x86 build is requested, i686 instruction set is chosen now. i386 instruction set removed since de facto it is not supported by some core libraries (Boost.Atomic and Boost.SmartPtr) and major operating systems. The minimum 32 bit x86 instruction set is i486 now. Also added a few more instruction sets that appeared in recent CPUs.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@84254 b8fc166d-592f-0410-95f2-cb63ce0dd405
Fixed accidental previous commit.

git-svn-id: http://svn.boost.org/svn/boost/branches/release@84255 b8fc166d-592f-0410-95f2-cb63ce0dd405