Bminer password empty on NiceHash
Starting command:
`Bin\NVIDIA-Bminer1431\bminer.exe  -uri cuckaroo29://xxx.NemosMiner:@grincuckaroo29.eu.nicehash.com:3371 -max-temperature 94 -devices 0,1,2,3,4 -api 127.0.0.1:4068`

Another one:
`Bin\NVIDIA-Bminer1431\bminer.exe  -uri beam://xxx.NemosMiner:@beam.eu.nicehash.com:3370 -max-temperature 94 -devices 0,1,2,3,4 -api 127.0.0.1:4068`

After the `NemosMiner:` there is nothing. `x` should be there when using NiceHash.

![image](https://user-images.githubusercontent.com/1230402/52887171-1255e880-3177-11e9-95e3-343b43847088.png)