North Ayrshire Council's leader Joe Cullinane has refused to back down over comments he made in a meeting earlier this summer.Councillor Ian Murdoch asked the local authority's leader to consider apologising when he branded a colleague's conduct "shameful".But defiant Councillor Cullinane refused to withdraw the remarks he made about Saltcoats councillor Ronnie McNicol, back in June.He made the jibe at a special meeting of North Ayrshire Council, where councillors discussed the new Ardrossan