A change in the Cole Harbour district’s boundaries could mean a change in the political landscape.   In official Halifax Regional Municipality jargon, the geographic description for District 4 is “Cole Harbour – Preston – Westphal – Cherry Brook.” A disjointed name for one of the most disjointed voting areas in the October 19 election. If you have a mental map of this region east of Dartmouth, some landmarks probably don’t fit inside the district’s political borders like you think they would…