Mourners have gathered to remember the ‘revolutionary’ Irish writer Edna O’Brien as her funeral saw her carried by boat across Lough Derg in County Clare today.O’Brien’s funeral mass was attended by Ireland’s President Michael D Higgins and actor Stephen Rea as well as the novelist’s family and friends today.Her agent announced her sad death aged 93 last month and was met by a wave of tributes remembering O’Brien’s bold career after her books’ daring themes sparked controversy.O’Brien’s career also saw the likes of Elizabeth Taylor and Michael Caine star in movies based on her novels and she also answered the very…