make more things private in the OntoloyIndex
fix typo in config property name
move from using a stemmer in the ontoIndex to using an analyzer throughout

- instead of setting the type of the token add ConceptAttribute
  to store the information
- also removed patched lucene-analyzer classes where no longer needed
- ontology index only uses analyzed content (when indexing the labels
  it fetches the lucene helper from a static halper)
- unfortunately after the demise of the "multi-word" stemmers
  it shown that scrapping punctiation leads to detection
  of cocents even when it spas sentences
  use a word boundary tokenizer plus a special attribute
  flagging puctuation while dropping it from the stram
  to fix this
scrap unused test