convert analysis consumers to try-with-resources

Most of these consumers' exception handling is questionable at best.

if you do it with try-with-resources, then its obvious its correct:

try (TokenStream stream = analyzer.tokenStream("body", "testing")) {
  stream.reset();
  while (stream.incrementToken()) {
    ...
  }
  stream.end();
}

For trunk we should change the consumers to work this way. For 4.x we can simulate it with IOUtils