An optimized representation of a set of moves - mainly there to avoid excessive allocation (and garbage collections) in a few critical places.

	private
	on:from:to:

	sorting
	sort:to:using: sortUsing:

	accessing	top
	contents Answer with a copy of my collection from 1 to readLimit.
	startIndex

	private	top
	on:from:to:

	sorting	top
	sort:to:using: Sort elements i through j of self to be nondescending according to sorter.
	sortUsing: