Create new, a little bit better structured configuration

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

languages/js.el

@@ -1,35 +0,0 @@
-;;; Js -- summary
-;;; Commentary:
-
-;;; Code:
-
-;;========== Editor config =========================
-(defun editor-config-js ()
-  "Editor configuration for Javascript."
-  (set-indent 2)
-  (set-width-80))
-
-;;========== Code completion =======================
-(defun completion-config-js ()
-  "Code completion and inspection for Javascript."
-  (company-mode 1)
-  (flycheck-mode 1)
-  (flymake-mode)
-  (set (make-local-variable 'company-backends)
-       '((company-tern company-capf company-etags company-dabbrev-code
-                       company-yasnippet company-files))))
-
-;;========== Tide mode ============================
-;; TODO: Figure out how to use tide with Emacs and NVM.
-(defun tide-config-js ()
-  "Configure tide mode."
-  (interactive)
-  (tide-setup)
-  (eldoc-mode))
-
-;;========== Hooks =================================
-(add-hook 'js-mode-hook 'editor-config-js)
-(add-hook 'js-mode-hook 'completion-config-js)
-
-(provide 'js)
-;;; js.el ends here