BTC/GH/Day Reporting Incorrectly from Pools
I am rebenching a rig using the latest master and it looks like there is an issue with the BTC/GH/Day reporting.  It would be nice if I was making $9,609.55 with Lyra2RE2 a day on this rig but somehow I don't think it is true :)

![rebench 3 3 nemo issue](https://user-images.githubusercontent.com/35848125/42413603-ff66c37a-81e0-11e8-9b27-c20b7727b56b.jpg)
