Fix "combine" vs "deliver" issue#148
fix a couple of punctuation issues with lists of items.
Add milk & latte to game (note milk needs correcting to be a liquid)
Fix milk to be in a bottle and require a container.
re-fix grammar (and related failing test
Enable components to support more than one thing item.
Clean up description of machines that deliver to be clear what's currently available and what could be available.
Add mocha to coffee machine :)