app.nlp.ner: Turning ChainNer2 into an annotator, many cleanups
app.nlp.ner: Renaming ChainNer2 to NER3
app.nlp.ner: Renaming file ChainNer2 to NER3
Merge pull request #32 from alextp/revisit-chainner2

app.nlp.ner: Turning ChainNer2 into an annotator, many cleanups