By: Addison Wylie The nightlife throbs in Nightcrawler.  When the streets are sparse and the air is humid, there’s an electricity in the air.  Lou Bloom is a lonely guy who lives off of it. We don’t know much about Jake Gyllenhaal’s lonely Lou.  By the end credits, we still don’t know a heck of a lot about him – it’s exactly the point. The film’s title very much fits Bloom’s personality as someone who…