- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Update libstdc++ with small updates from the latest rev. (135556)
from the gcc 4.2 branch.
The libraries in the gcc-4_2-branch remained under the LGPLv2.

The changes can be reproduced with the following command:

svn diff svn://gcc.gnu.org/svn/gcc/branches/gcc-4_2-branch/libstdc++-v3
-r 127959:135556

Reviewed by: mm
Approved by: jhb (mentor)
MFC after: 2 weeks

This commit was generated by cvs2svn to compensate for changes in r169691,
which included commits to RCS files with non-trunk default branches.

GCC 4.2.0 release C++ standard library and runtime support code.