Invoke dub from makefile to build the binary

[nemanja-boric-sociomantic]

Don't use submodules/dmd directly, but use dub to build the binary and makd to build the package.

[nemanja-boric-sociomantic]

Oh, sorry, that's rebase-foo. I'll squash it into the same commit and rebase. Or the othey way around.

[nemanja-boric-sociomantic]

Updated @leandro-lucarella-sociomantic .

[nemanja-boric-sociomantic]

Squashed.

[nemanja-boric-sociomantic]

Reworded commit.