This bug was reported by Alex Hansen. The problem was that the
'self.relax.generic_fns.palmer.create()' function was skipping spins when no relaxation data was
present whereas the complementary funtion 'self.relax.generic_fns.palmer.extract()' was not skipping
these spins. Hence the second of these functions was expecting more spins than were in the
modelfree4 generated 'mfout' file.
