function unwrap(match) {
			var i, elements = getWrappersByIndex(match ? indexOf(match) : null);

			i = elements.length;
			while (i--) {
				unwrapElement(elements[i]);
			}

			return this;
		}
Unwraps the specified match object or all matches if unspecified.

@param {Object} [match] Optional match object.
@return {DomTextMatcher} Current DomTextMatcher instance.