Seamless and GrubHub have been around for quite a while, enabling busy corporate America workers and others to get their food delivered, but the past year has taken food delivery to a new level. Wunwun launched in San Franciscoafter making a killing in New York City. San Francisco-based rival Postmates launched an API after racking up 36,000 restaurants as customers. Countlessstartups for cooking and delivering hot meals cropped up to feed those who are too busy and weary of take-out food. Instacart, the grocery delivery startup that was recently rumored to be raising more than $100 million in new funding, had a banner year.