when + not == unless
Minor refactoring
Use cider-from-nrepl-filename-function to translate nREPL-Server
pathnames to elisp pathnames
Code style
[Fix #501] Nil appearing in nrepl-server buffer name when no project directory.
Adding cider-change-buffers-designation.
Use cider-to-nrepl-filename-function to translate elisp pathnames to
nREPL-Server pathnames