Vim-Fireplace now supports code formatting via Cider/clj-fmt

Finally my patch to access the clj-fmt feature in the cider-nrepl made into the master branch. The feature is mapped to the formatexpr of vim, which is accessed via gq. So to clean up the mess you just created, press gqaF (format the outermost form).

https://github.com/tpope/vim-fireplace/commit/2193122e13fdf9e9af30475d8d9a90746234c1d8