As retailers expand in Texas, there has long been an established order among the major metro areas — Dallas, Houston, Austin, and often in last place, San Antonio. But as the city continues to grow in terms of population, jobs, infrastructure and income levels, an increasing number of new or existing retailers are leapfrogging other Texas cities into San Antonio, using the city as a platform for future locations in the state. Hand & Stone Massage & Facial Spa, which opened its first Texas location…