By: Mark Barber Tracers is aimlessly plotted, driven only by a cynical, desperate need to financially exploit the parkour craze and Twilight star Taylor Lautner’s now-dwindling popularity. The film’s overall premise and execution recalls Lautner’s previous action outing, 2011’s Abduction.  Although Tracers takes itself slightly more seriously, both films have a proclivity for deception.  Similar to how Abduction featured no actual kidnappings, Tracers is barely about parkour; it gracelessly vacillates between a modern-day re-visioning of…