Create new, a little bit better structured configuration

* Group configuration by package, and only then by language mode
* Slim down all the languages

config/spelling.el

@@ -1,18 +0,0 @@
-;;; spelling.el -- summary
-;;; Commentary:
-
-;;; Code:
-
-;; Disable meta on right alt (useful for Polish characters)
-(setq ns-right-alternate-modifier nil)
-
-(require 'ispell)
-;; Highlight misspelled words
-(setq ispell-program-name "aspell")
-(setq ispell-extra-args
-      '("--run-together" "--run-together-limit=5" "--run-together-min=2"))
-(add-hook 'prog-mode-hook 'flyspell-mode)
-
-(provide 'spelling)
-
-;;; spelling.el ends here