[BUG] doc bugs

There are some doc bugs in the haddocks. The ones I've noticed are: 1. the links to `use` go to `http://hackage.haskell.org/package/accelerate-1.3.0.0/docs/Data-Array-Accelerate-Language.html#v:use` which is wrong; 2. the links to `Exp` from `http://hackage.haskell.org/package/accelerate-llvm-native-1.3.0.0/docs/Data-Array-Accelerate-LLVM-Native.html` go to `http://hackage.haskell.org/package/accelerate-llvm-native-1.3.0.0/accelerate-1.3.0.0/Data-Array-Accelerate.html#t:Exp` which is also wrong.

There are likely other bugs as well, these are the ones I found immediately.

I've been looking at the docs on hackage.