Several newly elected mayors have boycotted the certification of a convicted war criminal as new mayor of the western Bosnian town of Velika Kladusa.Fikret Abdic was released in 2012 after serving his 15-year sentence in Croatia.The 76-year-old Abdic was called up first during a ceremony in Sarajevo on Tuesday at which the mayors chosen during Oct. 2 local elections were certified.During the 1992-95 Bosnian war Abdic formed the province of Western Bosnia which fought against fellow Muslim Bosniaks loyal to Sarajevo.