• Added isActive to Constraint so you can see if there are any active NSLayoutConstraint's that are currently active as a result of the backing constraint.
• Made Constraint layoutConstraints public again so you can publicly access the layout constraints. Use with caution as SnapKit expects ownership of these.
• Fixed bug with contentCompressionResistanceHorizontalPriority (#387)
• Fixed missing topMargin with contentCompressionResistanceHorizontalPriority (#393)
• Added more robust priority support (#345)