By Jeffrey Quiggle A new partnership aims to accelerate the use of virtual cards for business-to-business travel payments. Texas-based travel technology company Sabre (SABR) – Get Free Report Corporation and the UK’s Conferma Pay have worked together on virtual payments technology for travel firms since 2011. This was long before they made it official last August, when Sabre acquired the business payment software company for for $72.5 million. American Airlines (AAL) – Get Free Report had founded Sabre more than 60 years ago, in 1960. It became its own entity in 2000. In 2011, Sabre and Confer…