0.5.0p3: Stuck drifter/item fixes — Flotsam Steam update #383558

Early Access 0.5.0p3 0.5.0p3 fixes various bugs where drifters could get stuck and unresponsive. As well as items that got stuck in boats and storages. Fixes Fixed a bug where drifters would get stuck in a transition between the water and the walkways. Fixed a bug where drifters would get stuck while salvaging landmarks with a boat but swam to it instead. Fixed a bug where food or water items would get stuck in storage/building inventories. Loading save files with this bug should fix the save files. Fixed a bug where double-click movement on map would stop working after going back to the main menu. Fixed a bug where enabling the energy overlay would not have it display the energy lines.