Initialize AccountPasswordData with defaults
function AccountPasswordData() {
	this.validatedPassword = null;
	this.charsets = {
		lowerChars: 'abcdefghjkmnpqrstuvwxyz'.split( '' ),
		upperChars: 'ABCDEFGHJKMNPQRSTUVWXYZ'.split( '' ),
		digitChars: '23456789'.split( '' ),
		specialChars: '!@#$%^&*'.split( '' ),
	};

	this.letterCharsets = pick( this.charsets, [ 'lowerChars', 'upperChars' ] );
}