When the great Easter Bunny hullabaloo hit Walnut Creek, it took nearly everyone by surprise. Surely, city officials thought, this couldn't last. It would all blow over once people realized that they hadn't banned Easter, just renamed their annual kids' event a "Spring Egg Hunt'' rather than an "Easter Egg Hunt.'' "Honestly,'' Walnut Creek spokesman Brad Rovanpera said this week, "with all the things in the world to worry about, people are coming unglued over this?'' They are. And the reaction speaks less to the controversy about religion in the community -- it's just a rabbit, after all -- than...