My spacemacs config, likely requires features only in the develop branch of spacemacs.
$ git clone git@github.com:syl20bnr/spacemacs.git ~/.emacs.d
$ cd ~/.emacs.d && git checkout develop
$ git clone git@github.com:aaronjensen/spacemacs.d.git ~/.spacemacs.d && ~/.spacemacs.d/setup.sh