Re-enable host watchdog

Re-enabling the host watchdog.
It was commented out due to a unhandled use case during power off,
and this use case has been addressed.
diff --git a/bin/chassis_control.py b/bin/chassis_control.py
index e8c82d5..ad7a6ad 100755
--- a/bin/chassis_control.py
+++ b/bin/chassis_control.py
@@ -187,8 +187,8 @@
 		
 	def host_watchdog_signal_handler(self):
 		print "Watchdog Error, Hard Rebooting"
-		#self.Set(DBUS_NAME,"reboot",1)
-		#self.powerOff()
+		self.Set(DBUS_NAME,"reboot",1)
+		self.powerOff()
 
 	def emergency_shutdown_signal_handler(self):
 		print "Emergency Shutdown!"