fix bug when init db (#122)

diff --git a/server/service/mongo/session/session.go b/server/service/mongo/session/session.go
index 3a5c06c..48b5da2 100644
--- a/server/service/mongo/session/session.go
+++ b/server/service/mongo/session/session.go
@@ -259,7 +259,7 @@
 		panic(err)
 	}
 	//view
-	c = session.DB(DBName).C(CollectionLabel)
+	c = session.DB(DBName).C(CollectionView)
 	err = c.Create(&mgo.CollectionInfo{Validator: bson.M{
 		"id":      bson.M{"$exists": true},
 		"domain":  bson.M{"$exists": true},