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Maximilian Nöthe authored
* Make sure unit is really a unit, use fits format * Only apply unit if unit is not none, add test * Use vounit format * Simplify unit code of hdftablewriter * Use bionic on travis
* Make sure unit is really a unit, use fits format * Only apply unit if unit is not none, add test * Use vounit format * Simplify unit code of hdftablewriter * Use bionic on travis