Merged [48041] from release branch, since it was never applied to trunk.


svn path=/trunk/doc/; revision=51709
Give the variablelist a margin.

svn path=/trunk/doc/; revision=51804
On sun, use stlport.

Fixes #2772.

svn path=/trunk/Jamroot; revision=51894
Remove function_types from the list of compiled libraries.

Fixes #2489.

svn path=/trunk/Jamroot; revision=51895
Include unistd.h

Fixes #2596.

svn path=/trunk/tools/; revision=51896
remove -- from toolset 

svn path=/trunk/tools/; revision=51944
Explicitly request that target targets be removed.

Boost.Build default will be flipped shortly, and we don't
want regression tests to keep the binaries around.

svn path=/trunk/tools/; revision=51989