Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

another tool that uses the raw tx api

Submitted by: Andrea Bittau <a.bittau@cs.ucl.ac.uk>