NBT_NameService.py: Two more cleanup cleanups + references.
NBT_NameService.py: Two more cleanup cleanups + references.

  * Found two more instances in which a cleanup change wasn't fully find/replaced.
    * Converted comments into docstrings for the same two properties.
  * Added a set of References in the comments, and referred to them by tag elsewhere in the code.
  * Fudged one doctest for formatting reasons.

ubiqx-org/Carnaval,manuella/Carnaval