This summer the Cineplex is crowded with a plethora of roughhewn comedies, several-too-many horror-thrillers, and a cascade of caped crusaders. But yet again, the cinematic landscape is bereft of the western. Oh, I know there’s a new “Lone Ranger” in the works, but that’s set for a July 2013 release. Why has the western been ignored by today’s moviemakers?  I…