Cenveo, Inc. announced results for the three months ended March 28, 2015.   The company generated net sales of $475.1 million for the three months ended March 28, 2015, compared to $490.1 million for the same period last year, a decline of 3.1%. The decline in net sales is attributable to the consolidation of several envelope facilities during the second half of 2014 in connection with the accelerated integration of the National Envelope assets with Cenveo’s existing operations and two new fac...