Use settings from .editorconfig file (#1008)

When an .editorconfig file is present in the project, it should be
used.

core/prelude-editor.el

@@ -431,6 +431,10 @@ and file 'filename' will be opened and cursor set on line 'linenumber'"
                                      (string-to-number (or (match-string 3 name) ""))))
                             fn))) files)))
 
+;; use settings from .editorconfig file when present
+(require 'editorconfig)
+(editorconfig-mode 1)
+
 (provide 'prelude-editor)
 
 ;;; prelude-editor.el ends here

core/prelude-packages.el

@@ -53,6 +53,7 @@
     diff-hl
     diminish
     easy-kill
+    editorconfig
     epl
     expand-region
     flycheck