Revise vim-empty-lines integration into spacemacs-evil

Removing any non clarified changes on defaults
and key bindings.

core/templates/.spacemacs.template

@@ -357,7 +357,7 @@ It should only modify the values of Spacemacs settings."
 
    ;; If non-nil the frame is fullscreen when Emacs starts up. (default nil)
    ;; (Emacs 24.4+ only)
-   dotspacemacs-fullscreen-at-startup t
+   dotspacemacs-fullscreen-at-startup nil
 
    ;; If non-nil `spacemacs/toggle-fullscreen' will not use native fullscreen.
    ;; Use to disable fullscreen animations in OSX. (default nil)

layers/+spacemacs/spacemacs-evil/packages.el

@@ -435,7 +435,7 @@
          :mode global-vim-empty-lines-mode
          :documentation
          "Display an overlay of ~ on empty lines."
-         :evil-leader "t~")
+         :evil-leader "T~")
        ;; Don't enable it where it is detrimental.
        (dolist (x (list spacemacs-buffer-name
                         "*Messages*"))