public void SaveToStream(Stream stream)
        {
            var collection = new SkillMetadataCollection(this.Skills);
            var serializer = new XmlSerializer(typeof(SkillMetadataCollection));
            var namespaces = new XmlSerializerNamespaces();

            namespaces.Add("", "");

            serializer.Serialize(stream, collection, namespaces);
        }
        public void SaveToStream(Stream stream)
        {
            var collection = new SkillMetadataCollection(this.Skills);
              var serializer = new XmlSerializer(typeof(SkillMetadataCollection));
              var namespaces = new XmlSerializerNamespaces();
              namespaces.Add("", "");

              serializer.Serialize(stream, collection, namespaces);
        }