src/drivers/github.js
function getCompleteAuthor(commit) {
    const author = getSimpleAuthor(commit.commit.author);
    const avatar = commit.author ?
            commit.author.avatar_url
            : gravatar.url(author.getEmail());
    return author.set('avatar', avatar);
}
function getCompleteAuthor(commit) {
    const author = getSimpleAuthor(commit.commit.author);
    const avatar = commit.author ?
            commit.author.avatar_url
            : gravatar.url(author.getEmail());
    return author.set('avatar', avatar);
}
Get author from a listed commit (with avatar)