Upgrades increase stack sizes

[lyallp]

I noticed I had an inserter thinking a storage box was full of rail lines.

I had to take one out before it realised that the stack size had changed and the storage box was not actually full.

Also, is it possible to make it when the game loses focus that it does not generate sound or at least not the general background manufacturing sound.

Version: 0.11.17 (Build 13721, linux64)
Binary version: 64
Map input version: 0.7.0-0
Map output version: 0.11.17-1