FR: Formicids Always Detect Shafts

[Tressol]

Name pretty much says it all.

A Formicid doesn't have access to many of the escape options commonly available to other characters should a bad shaft occur (short of, conceivably, shafting themselves *again* :/), especially early on.

Given the Formicid connection with Earth and ability to sense monsters through solid rock walls, it seems quite justifiable fluff-wise as well.

[Tiktacy]

A nice little buff to a race that could use it. It makes sense both in the context of gameplay and flavor, is pretty self explanatory, and is fairly simple to program.

I doubt this would ever make it into the game since its pretty low on priority and importance, but its a nice little idea.

[dpeg]

A nice idea!

I would lobby for incorporating a patch into trunk!

[pumpyscump]

I'm adding this to Gurr's circus-animais fork, as well as attempting to submit it upstream to vanilla crawl.

https://github.com/crawl/crawl/pull/262