LOS GATOS, CA – Despite a growing number of competitors, Netflix added 6.74 million new customers in the first quarter, and posted increases in revenues and profits.The online streaming giant said that it now has 81.5 million subscribers worldwide, with 47 million U.S. customers and 34.5 million (or 42%) internationally. It added 2.23 million U.S. customers in the three month period, down from 2.28 million in the same period last year, but added 4.51 new international customers after launching in 130 more countries this quarter.Revenues for the period were $1.81 billion, up from $1.40 billion during the same quarter in 2015,...