This work was supported by: Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, Brazil (CAPES) and Texas A&M University Collaborative Research Grant Program (CAPES/TAMU 001/2014). MC, BB, and TD were supported by US National Science Foundation award IOS-16568790 to MC. MS was supported by Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq). LS was supported by Programa de Apoio ? Coope...