cortlandstarrett/models — pull request #1 by cortlandstarrett (2014-12-30 15:59:31+00:00)
Title: job:  #589  Adding test model that exercises returning strings in the fa...

...ce of multi-threading. There are 3 or 4 independent groups of classes. upper and lower are a pair; ping and pong are a pair, and spin and spun can be paired or run in their own threads.