/// <summary>
        /// Searchs the fol configuration files and nest them.
        ///From Radim: http://stackoverflow.com/questions/19427333/how-to-find-a-projectitem-by-the-file-name
        /// </summary>
        /// <param name="projectItems">The project items.</param>
        private static void SearchFolConfigFilesAndNestThem(ProjectItems projectItems)
        {
            foreach (ProjectItem projectItem in projectItems)
            {
                string transFileName;

                if (projectItem.TryGetPropertyValue(ProjectItemExt.FullPathProperty, out transFileName))
                {
                    transFileName = Path.GetFileName(transFileName);
                    string configFileName;
                    if (TransformationProvider.CheckTransformationFileAndGetSourceFileFromIt(transFileName,
                                                                                             Options.Options.TransfomationFileNameRegexp, Options.Options.SourceFileRegexpMatchIndex,
                                                                                             out configFileName))
                    {
                        var configItem     = DteHelper.FindItemByName(projectItems, configFileName, true);
                        var itemToBeNested = DteHelper.FindItemByName(projectItems, transFileName, true);

                        if (configItem == null || itemToBeNested == null)
                        {
                            continue;
                        }

                        // ReSharper disable once UnusedVariable
                        var    pitn = configItem.ProjectItems.AddFromFile(itemToBeNested.GetFullPath());
                        string itemType;
                        if (itemToBeNested.TryGetPropertyValue(ProjectItemExt.ItemTypeProperty, out itemType))
                        {
                            pitn.TrySetPropertyValue(ProjectItemExt.ItemTypeProperty, itemType);
                        }
                    }
                }
            }
        }