Commit Briefs
support completions in minibuffer + related interactive fns
* cmd.c (cmd_previous_completion): add previous-completion (cmd_next_completion): add next-completion (cmd_insert_current_candidate): add insert-current-candidate * minibuffer.c (enter_minibuffer): support completions in minibuffer
bugfix: allow editing minibuffer history
restore the current line, so the editing operations can actually modify the input buffer, instead of the history string.