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

This commit was generated by cvs2svn to compensate for changes in r80260,
which included commits to RCS files with non-trunk default branches.

Import updated/clarified license for tcp_wrappers.

+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that this entire copyright notice
+* is duplicated in all such copies.

Obtained from: ftp://ftp.porcupine.org/pub/security/tcp_wrappers_license

Clean import of TCP-wrappers by Wietse Venema.
Rest of build to follow.