print_function
Make py.test happy
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Add pickle tests for PseudoTable
 PeriodicTable is not pickleable! Removing @cached_class in Element fixes the
 problem with pickle and the unit tests in tests_flow.
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Conflicts:
	pymatgen/core/tests/test_periodic_table.py
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autoparal run now produces a autoparal.txt file with the configurations.
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Typo
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Fix regressions
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