bin/fac: Look in additional places for resources,
 making it easier to run with new models without building a .jar.
POS1: Comments about future setup for different training data.
DepParser1: Print URL when loading.  Eventually we should have more
general infrastructure for this, and use loggers.
NLP: Add more help documentation, and --pos1o for Ontonotes model.
DocumentAnnotatorPipeline: Add provider for ner.NerLabel.