Minor Update Version 0.11.1 — Sigma Draconis Steam update #539870

This is a very small update with a couple of fixes. Changes - Adjusted the path-finding around metal and organics stacking areas, to reduce the likelyhood that colonists will be unable to find a route past them. - Fixed a flaw in the plant seeding system that could cause whiteflower, blue lantern, or fireflower plants to spread too quickly on some maps and eventually fill most of the available space. Fix is to a parameter set when the map is generated, so it won't apply to existing saves.