The repositories for krypt, krypt-provider-openssl, and binyo are currently
specified to be in the local file system. It forces the developer to have
those source files in the file system as well.

With this pull request the repositories will be fetched from the official master branch
directly from github.

Also, for the moment the specs are inside the krypt repository and an incomplete
spec file has been put in place to inform where to find them.