Merge commit 'a552bce2c8549cd5dab18f9a9a5fe0849a450c80'
Fix default option of -terrain
Restored option to scroll in inventory.
Fix README.md
Corrected mouse clicking in inventory. You can now select items in inventory by clicking on them. After second click you can move them to quick slots.
Added new options to hide inventory GUI - by using Escape key and by clicking outside of inventory.