private static void UpdateRamlAndIncludedFiles(string ramlFilePath, ProjectItem destFolderItem, string ramlSource, string containingFolder)
{
var includesFolderItem = destFolderItem.ProjectItems.Cast <ProjectItem>().FirstOrDefault(i => i.Name == InstallerServices.IncludesFolderName);
InstallerServices.RemoveSubItemsAndAssociatedFiles(includesFolderItem);
var includeManager = new RamlIncludesManager();
var result = includeManager.Manage(ramlSource, containingFolder + Path.DirectorySeparatorChar + InstallerServices.IncludesFolderName);
UpdateRamlFile(ramlFilePath, result.ModifiedContents);
InstallerServices.AddNewIncludedFiles(result, includesFolderItem, destFolderItem);
}