Update to move to shareMulti setting, rather than the hard-coded 2 value.

lib/blockManager.js

@@ -258,7 +258,7 @@ function calculatePPLNSPayments(blockHeader) {
                             amount: 0
                         };
                     }
-                    let amountToPay = Math.floor((shareData.shares / (blockDiff*2)) * rewardTotal);
+                    let amountToPay = Math.floor((shareData.shares / (blockDiff*global.config.pplns.shareMulti)) * rewardTotal);
                     if (totalPaid + amountToPay > rewardTotal) {
                         amountToPay = rewardTotal - totalPaid;
                     }