run doit using task_creators

    @param task_creators: module or dict containing task creators

def run(task_creators, args, task_selectors=[]):
    """run doit using task_creators

    @param task_creators: module or dict containing task creators
    """
    if args.reset_dep:
        sys.exit(DoitMain(WrapitLoader(args, task_creators)).run(['reset-dep']))
    else:
        sys.exit(DoitMain(WrapitLoader(args, task_creators)).run(task_selectors))