elegent sql building

[Mark McEahern]

Rethink:

	criteria1 = Criteria(name1, operators.lessThan, value1)
	criteria2 = Criteria(name2, operators.in, value2)
	criteriaGroup = CriteriaGroup()
	criteriaGroup.and(criteria1)
	criteriaGroup.and(criteria2)
	criteriaGroup.or(criteria3)
	sql = object.buildSqlSelect(criteriaGroup)

// mark