Auntie Anne’s® invites the pretzel-loving public to "RSVP" to Auntie Anne’s 30th birthday party at HBDAuntieAnnes.com   LANCASTER, Pa., 2018-Feb-23 — /EPR Retail News/ — Auntie Anne’s®, the world’s largest hand-rolled soft pretzel franchise, turns 30 this year and is calling on the pretzel-loving public to help ring in this delicious milestone. From now through March 2,…