By Cinthia Rodriguez &ndash; El Observador With a lineup led by El Tri, Revolucion Rokkera featured the legends of Rock en Espa&ntilde;ol during an all day music festival. Hundreds attended the Salinas Sports Complex where Molotov, Fobia, and Dopamina performed. Multi Grammy winning artist, Cesar &ldquo;Vampiro&rdquo; Lopez, is one of the best-known guitarists in Spanish [...]