Fixed test_versions so it will once again find all python versions.  Also made it find pypy.
Fixed test_versions so it will once again find all python versions.  Also made it find pypy.

wfxiang08/green,krisztianfekete/green,CleanCut/green,krisztianfekete/green,wfxiang08/green,CleanCut/green,wfxiang08/green