v0.6.0: Preserve intrinsic content size constraints by default

• Modify the behavior of the removeAllConstraintsFromViewAndSubviews method to exclude the lower-priority intrinsic content size constraints by default
• Add a new method that will optionally remove all constraints, including intrinsic content size constraints
• Add new variant (with relation parameter) to the existing method that pins the edge of a view to the same edge of its superview with an inset