TOP PERFORMERS Jack Links Beef Jerky Slim Jim (ConAgra Foods Inc.) Pemmican (ConAgra Foods Inc.) HONORABLE MENTIONS Gardetto’s (General Mills) Keebler (Kellogg Co.) Accounting for $836 million in sales at convenience stores last year, meat snacks seem to be a category tailor-made for convenience consumers. Jerky is a quintessential impulse item that appeals greatly to…