Update 0.1.5

Just a few bugfixes following yesterday's update:

• We previously increased the slot size of the Hetra-Platform which broke players inventories (sorry). We have reverted this change so it should take up its previous slot size again.

• Optimised some of the underlining block linkage code. This should improve the stuttering that players with big bases and lots of conduits were encountering.

• Tracked down and fixed the issue that was causing tech repair to fail, leading to your destroyed tech blocks to drop around you from the sky.