Wilmington Christian School is getting a new headmaster, starting July 1.  Jonathan Nazigian was selected by the Hockessin school’s board of directors, following an international search. “God has led us to an individual with strong Godly character, long-term Christian school experience and servant-leadership qualities,” said Lesley Aulick, chair of the headmaster search committee. Nazigian’s relationship with Wilmington Christian began in …