Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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 to tcsh 6.18.01.

Update to tcsh 6.17.00.

Approved by: re (kensmith)

This commit was generated by cvs2svn to compensate for changes in r100616,
which included commits to RCS files with non-trunk default branches.

Import of tcsh-6.12.00

Import tcsh-6.11

Initial import of slightly trimmed tcsh 6.10