Fix compile errors.

cmd/md2leveldb/md2leveldb.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 
 	"xinu.tv/email"
+	"xinu.tv/email/maildir"
 
 	"github.com/golang/glog"
 	"github.com/syndtr/goleveldb/leveldb"

cmd/ximap/ximap.go

@@ -14,7 +14,7 @@ import (
 	"github.com/golang/glog"
 	"github.com/jordwest/imap-server"
 	"github.com/jordwest/imap-server/mailstore"
-	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 )
 
 var (
@@ -55,7 +55,7 @@ func main() {
 	flag.Parse()
 	defer glog.Flush()
 
-	http.Handle("/metrics", prometheus.Handler())
+	http.Handle("/metrics", promhttp.Handler())
 	go func() {
 		glog.Fatal(http.ListenAndServe(*httpAddr, nil))
 	}()