“Where am I? How did I get here?” Those are Superman’s first thoughts from the beginning of Convergence #0. Those thoughts pretty much echo my own regarding the post-Flashpoint DCU. I’ve been left cold by crossovers before, but never have I been so completely turned off by a direction than I have by DC’s “New 52” (or “DCnU” if you prefer). At the end of the “zero” issue I was mildly surprised to…