This version offers small fixes to the buildflags framework. If you use
the THREADS knob, make sure that you do not use it for ports. Use
SUBTHREADS instead.

- buildflags
  buildflags.mk v1.3
  buildflags.awk v1.0

 * Tested on FreeBSD 6.1.
 Please run 'man 1 buildflags.mk' and 'man 1 buildflags.conf' 
 and 'man 1 buildflags.awk' for introductions.

- portconfig v1.2

 * Tested on FreeBSD 4.x and 6.1.
 * Depends on portupgrade.
 Please run 'man 1 portconfig' for introductions.

- rcstart v1.2

 * Tested on FreeBSD 4.x and 6.1.
 * Should work on NetBSD (untested).
 Please run 'man 1 rcstart' for introductions.
