Zero-K 1.8.12.1 - Sneaky Holiday Fixes — Zero-K Steam update #758097

Here are a few fixes to round out the year. Seawolf behaves better around coasts, Metal Extractor placement is smoother, and a lingering graphics bug has been resolved. This is probably the last patch of the year so I'd like to thank the community for helping each other through an otherwise difficult year. Fixes with multiple dot points Submarines can no longer traverse shallow water, reverting a recent experimental change. Unfortunately it resulted in Seawolf needlessly revealing itself to surface weaponry while skirting islands. Minimum depth 5 -> 15. Seawolf now has a higher aim point and fire point. This solves various weapon blocking bugs that could occur around coastlines. Metal Extractor placement is now consistent with other structure placement. If you click where a mex can be placed, the mex is placed, othe...