Fix examples

examples/daemons-kafka/daemons/number_printer.go

@@ -14,8 +14,8 @@ type NumberPrinter struct {
 
 // Startup sets up panic handler and starts enqueuing number printing jobs.
 func (n *NumberPrinter) Startup() {
-	n.HandlePanics(func(err interface{}) {
-		n.Logf("Oh, crap! There was a panic, take a look: %v", err)
+	n.HandlePanics(func(err error) {
+		n.Logf("Oh, crap! There was a panic, take a look: %s", err.Error())
 	})
 
 	n.LimitRate(3, time.Second)

examples/daemons-kafka/daemons/price_consumer.go

@@ -3,12 +3,12 @@ package daemons
 import (
 	"time"
 
-	"github.com/localhots/shezmu"
+	"github.com/localhots/shezmu/consumer"
 )
 
 // PriceConsumer consumes price update messages and prints them to the console.
 type PriceConsumer struct {
-	shezmu.BaseDaemon
+	consumer.Consumer
 }
 
 // PriceUpdate describes a price update message.