code: private static File getCowfile(final String folder, final String cowName) {
  		File[] cowfiles = getCowFiles(folder);
  		for (File cowfile : cowfiles) {
  			if (cowfile.getName().equals(cowName)) {
  				return cowfile;
  			}
  		}
  		return null;
  	}
docs: Get a cowfile, by name, from the given directory.
  @param folder The absolute path to the filesystem folder.
  @param cowName The name of the cowfile to load (without the ".cow" extension).
  @return A File if the cowfile is found in this directory otherwise null.