The annual Stearns Farm fall potluck picnic and work day takes place at the end of September.  This year it was the last warm day.  There were jars of pickles, bowls of watermelon salsa and kale salad and quiche, and plates of honey cake and carrot cake and plum cake.  There was music.  There were families.  There was a pet rabbit running loose that Lily couldn’t keep her eyes off of, so we had to keep her close for a good part of the afternoon. Whenever I’m at a gathering with farm people, I realize that I’m with my people.  It’s a big distinction to make for someone who hasn’t felt at home here in the Boston area.  Farm people are people who care…