Load `datomic.clj` from `.lein/profiles.clj`
Load `datomic.clj` from `.lein/profiles.clj`

- but only if it exists

I'm not sure this is what I'll do long-term, but I don't like the
alternative (GPG-encrypted credentials), because it still doesn't seem
to solve the "Don't add the Datomic repo to every project" problem.

nestukh/dotfiles,nestukh/dotfiles,nestukh/dotfiles,benizi/dotfiles,benizi/dotfiles,nestukh/dotfiles,nestukh/dotfiles,benizi/dotfiles,nestukh/dotfiles,benizi/dotfiles,benizi/dotfiles,nestukh/dotfiles,benizi/dotfiles,nestukh/dotfiles,benizi/dotfiles,benizi/dotfiles