ARS and Subsystem performance frequently results in no scores

[sharatisrani]

As requested by TACT members: this is a tracking issue that subsumes many, including new vs old confidence scoring, and new novelty factor scores, analysis of grouping. ARS calls Appraiser which calls other scoring systems as in slide 2 of O&O flow diagram.

It is actually a showstopper issue until the scores flow with reasonable certainty, guessing 90%.

At the moment, there are two suspects for slowness - networking issues that affect the Appraiser-ARS link, and PubMed Reference performance in returning recency results to Novelty scoring.