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against it.

Removed a couple of unneeded lines.

Updated the sensors directory Makefile to use the very nice infrastructure
for subdirs that Eric pointed me to.  Also, canaryd will no longer
be built if the arch isn't FreeBSD.

Split off the feedback metric gathering, alerting, and reporting code from
slothd and slammed it into a new daemon: canaryd.  There is currently quite
a bit of code duplication between slothd and canaryd.  Sometime in the future
I need to go back and extract the common portions into a module.

possible to:

	gmake client
	sudo gmake client-install

on a FBSD4, FBSD5, RHL7.3, and RHL9.0 client node.

There are still some dependencies that are not explicit and which would
prevent a build/install from working on a "clean" OS.  Two that I know of are:
you must install our version of the elvin libraries and you must install boost.

the top level.  This will build all the necessary binaries and then install
them.  This works on FBSD4 and RHL7.3.  It still doesn't work on FBSD5
(newer compiler that no longer supports a style of use of _FUNCTION_ in the
event lib) or RHL9 (event lib needs SSL lib which has a bad dependency
on Kerberos).  Notes:

- requires that elvin libraries be installed on nodes (they are) to build
  event agents, requires linuxthreads be installed on FBSD (it is now) to
  build imagezip (which is installed, but is not strictly necessary)

- installed event-agents and other binaries are stripped

- added a few missing files to the source tree for bsd (healthd.conf)
  and linux (healthd.conf, rc.local)

- the only thing that doesn't get rebuilt in /usr/local/etc/emulab is
  healthd, I couldn't quickly find how it gets built

- uses a scaled down version of libtb with no DB functions (since mysql
  isn't installed on nodes).  N.B. DO NOT DO A CLIENT INSTALL FROM YOUR
  REGULAR OBJ TREE OR ELSE YOU MAY WIND UP WITH A NEUTERED VERSION OF
  libtb.a!

The build-as-well-as-install semantics are counter to the regular install
targets, but this is what we gotta do for now.  Once the TB source builds
under Linux and newer BSDs, we could undo this and just require that people
do a regular "make" followed by "make client-install"  OTOH, there should
be no reason to require installation of mysql and other server-side packages
just to build clients (or make them sit through the compilation of assign),
so maybe we will keep the client build special.

mysql code (similar to whats in tmcd.c) plus some logging function
support.

the testbed list.