0.25

What's Changed

• Refactor standard deviation terms in schemas and rename related methods by @SmetDenis in #81
• Added new aggregate rules (first, nth, last) by @SmetDenis in #82
• Add Mean Absolute Deviation rules by @SmetDenis in #83
• Add Median Absolute Deviation rules by @SmetDenis in #84
• Implement nth_* and fixed line number by @SmetDenis in #85
• Add percentile by @SmetDenis in #86

Full Changelog: 0.24...0.25