Rotate through lunch weekly by individual
npm install --save hubot-lunch-rotation
hubot lunch> This week, User chose Jimmy Johns!
hubot lunch set Cafe Rio> Preferred lunch for User is Cafe Rio
hubot lunch unset> You've been removed from the lunch queue
hubot lunch queue> Cubbys - User1Dickey's BBQ - User2Pho+ - User3
hubot lunch is for the weak> Lunch queue has been emptied.