Quality-of-life change for the ship map

[Lamppost in Winter]

Right now, free-exploring with the ship requires a lot of repetitive clicking to clear out the fog of war. Either allowing us to click on the fog of war area or to hold down the mouse button and have the ship follow the mouse cursor would help with this.

[BMac]

You used to be able to hold down the mouse when in follow cam mode - it looks like that broke at some point. I've fixed it for the next release.