Merge pull request arduino#87 from arduino/fixrestart

Use a goroutine to detach the restart from the request

Author: mastrolinux

update.go

@@ -60,5 +60,5 @@ func updateHandler(c *gin.Context) {
 	}
 
 	c.JSON(200, gin.H{"success": "Please wait a moment while the agent reboots itself"})
-	restart(path)
+	go restart(path)
 }