Version 0.8: have poke produce diagnostic output

This release updates the poke built-in command to produce diagnostic output that can be logged. This is useful in order to know whether pokes are being attempted (i.e., whether your cron job is working), what actions are being taken, and whether restarts are successful. Poke diagnostic output can be inhibited by overriding a method in your DaemonController.Options. (The default is to produce poke output.)

Note that this and future versions of daemon.jar will be compiled for Java 1.8 and above only. If you need to support 1.6 or 1.7, you'll need to build it from source.