code: public void addDirectory( final String path, final Directive directive) throws NoSuchAlgorithmException, IOException {
  		contents.addDirectory( path, directive);
  	}
docs: Adds the directory to the repository with the default mode of <code>644</code>.
  
  @param path the absolute path to add as a directory.
  @param directive directive indicating special handling for this file.
  @throws NoSuchAlgorithmException the algorithm isn't supported
  @throws IOException there was an IO error