Two new environments:  datadescni and funcdescni.  These are similar to datadesc and funcdesc, but don't add entries to the index.
Two new environments:  datadescni and funcdescni.  These are similar to
datadesc and funcdesc, but don't add entries to the index.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator