coot

I am getting a lot of test failures of this sort: ``` +Warning: Both /cabal.dist/home/.cabal and /home/coot/.config/cabal/config exist - ignoring the former. +It is advisable to remove one of them....

I think the `~/.cabal` file comes from the test suite (I suspect it sets `HOME` variable in some particular way). We probably need to set some `XDG` env vars in...

btw, I don't have `~/.cabal` file in my `HOME` directory.

@Kleidukos I added the _QA Notes_: and checked that it works as expected :smile:. Do you know who else could review this PR?

It might be worth noting that in an earlier version of this PR I experimented using `package:sublibrary` as path in `./haddocks`, but there are two problems with it: * `:`...

Ups, I forced pushed after rebasing, and then I noticed some people committed to the branch.

@andreasabel are you sure you pushed to the right branch?

> Public sublibraries are a package-level concept, but here we are changing haddock-project. Why is that? `haddock-project` aims to create haddocks for all packages in a given project, including all...

@Mikolaj I got back to it recently :). @jasagredo I fixed all (but one) issues you reported to me some time ago; could you double check if it works for...

Checks are all green; as far as I am concerned, it would be nice to get reviews & merge it.