public HomeController(
			IConfigurationRoot configuration,
			IHostingEnvironment hostingEnvironment,
			JsEvaluationService jsEvaluationService)
		{
			string textContentDirectoryPath = configuration
				.GetSection("jsengineswitcher")
				.GetSection("Samples")["TextContentDirectoryPath"]
				;

			_fileContentService = new FileContentService(textContentDirectoryPath, hostingEnvironment);
			_jsEvaluationService = jsEvaluationService;
		}
		public HomeController(FileContentService fileContentService, JsEvaluationService jsEvaluationService)
		{
			_fileContentService = fileContentService;
			_jsEvaluationService = jsEvaluationService;
		}