Remove boxes from around test parameter values
Remove boxes from around test parameter values

A bug in py.test made us hide our non-hashable test parameter values
inside other objects, but the new py.test finally fixes the problem.

ozialien/python-skyfield,exoanalytic/python-skyfield,skyfielders/python-skyfield,ozialien/python-skyfield,GuidoBR/python-skyfield,exoanalytic/python-skyfield,GuidoBR/python-skyfield,skyfielders/python-skyfield