2.0.0

• Removed: declaration-block-no-redundant-longhand-properties rule.
• Removed: shorthand-property-no-redundant-values rule.
• Added: font-family-no-missing-generic-family-keyword rule.
• Added: no-descending-specificity rule.
• Added: no-duplicate-at-import-rules rule.
• Added: no-duplicate-selectors rule.