Update v84 — Drill Down Steam update #1583490

Update v84: * Fixed bottom left Refinery docks not working * Fixed Distillation Column playing sound effect when not actually working * Fixed Distillation Column not running truly continuously * Made Tin spawn one level earlier * Made Gas Turbine rotatable * Made Gas Turbine power output split evenly across all parts * Made Lifts not require Tin to build * Made Power Poles not placeable ontop of high power docks * Clarified Timelapse function not being a way to speed up the game * Renamed "Gravel" to "Ore Gravel" to clarify distinction with Stone Gravel * Renamed "Dust" to "Ore Dust" to clarify distinction with Stone Dust + Added additional guaranteed Copper Ore vein at level 0 + Added indicators for stackable buildings (Distillation Column & Gas Turbine)