0.27

What's Changed

• Add "contains_none" rule to cell validation by @SmetDenis in #88
• Add new "quartiles" and "midhinge" rules by @SmetDenis in #89
• Add various statistical mean rules by @SmetDenis in #90
• Add additional count rules by @SmetDenis in #91
• Add 'is_sorted' rule to aggregate rules by @SmetDenis in #92
• Update IsSorted rule parameters by @SmetDenis in #93

Full Changelog: 0.26...0.27