def index
      @yml_files = Cmtool::YmlFile.all

      respond_to do |format|
        format.html # index.html.erb
        format.xml  { render :xml => @yml_files }
      end
    end
def index
      @yml_files = Cmtool::YmlFile.all

      respond_to do |format|
        format.html # index.html.erb
        format.xml  { render :xml => @yml_files }
      end
    end
GET /yml_files
 GET /yml_files.xml