modified source path of moving, so that it can find UCF-101 dataset

Hi Matt Harvey,

In 1_move_files.py , the filename is only the video file name. it doesn't contain the path of UCF dataset and classname path. That is the reason that when run it, it returns "Can't find xxx to move. Skipping xxx."

I modified

            if not os.path.exists(filename):
                print("Can't find %s to move. Skipping." % (filename))
                continue

            # Move it.
            dest = os.path.join(group, classname, filename)
            print("Moving %s to %s" % (filename, dest))
            os.rename(filename, dest)

to

            src = os.path.join("UCF-101", classname, filename)
            if not os.path.exists(src):
                print("Can't find %s to move. Skipping." % (src))
                continue

            # Move it.
            dest = os.path.join(group, classname, filename)
            print("Moving %s to %s" % (src, dest))
            os.rename(src, dest)

This way others don’t need to modify it again.