default MSeq<T> sort() {
		return sort(0, length(), null);
	}
Sorts this sequence according to the natural order of the elements.

@throws ClassCastException if the sequence contains elements that are not
        <i>mutually comparable</i> using the specified comparator
@return {@code this} sequence
jenetics/src/main/java/io/jenetics/util/MSeq.java