code: public static void zip(final File aFileSystemDir, final File aOutputZipFile) throws FileNotFoundException,
              IOException {
          zip(aFileSystemDir, aOutputZipFile, new RegexFileFilter(WILDCARD));
      }
docs: Recursively zip a file system directory.
  
  @param aFileSystemDir A directory to be recursively zipped up
  @param aOutputZipFile An output Zip file
  @throws FileNotFoundException If a file expected to be there is not found
  @throws IOException If there is trouble writing to a Zip file