update gin import reference

tnnlr.go

@@ -13,7 +13,7 @@ import (
 	"time"
 
 	log "github.com/sirupsen/logrus"
-	"gopkg.in/gin-gonic/gin.v1"
+	"github.com/gin-gonic/gin"
 	"labix.org/v2/mgo/bson"
 )
 
@@ -563,4 +563,4 @@ func (t *Tnnlr) CleanBookkeepingDirs() {
 		}
 
 	}
-}
+}