The rich heritage, traditions and enduring spirit of the Acadian people will be celebrated during Rayne’s second annual Acadian Day Celebration. The free, family-friendly event will be held from 9 a.m. to 1 p.m. Saturday, Aug. 15, at the historic Bernard Bertrand House, 1023 The Boulevard in Rayne. The celebration will offer visitors of all ages a morning of Cajun music, history, language and trad…