Fix Python3 compatibility with the CHARMM parsers.
Merge pull request #586 from swails/charmm_py3

Fix Python3 compatibility with the CHARMM parsers
Fixed bug in getInducedDipoles()
avoid syntax error if tabulated function min is negative
Merge pull request #588 from peastman/master

Fixed bug in getInducedDipoles()
Merge pull request #589 from mgarraha/master

avoid syntax error if tabulated function min is negative
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Merge pull request #590 from rmcgibbo/openany

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