Turn on global-undo-tree-mode.

Turn on global-undo-tree-mode in init-editing-utils.el.
Resume C-x C-o for delete-blank-lines.

Comment out in init-helm.el. No longer use C-x C-o for helm-find-file.
Set resize-mini-windows to t.

Modifications in init-editing-utils.el.
Evil-mode configures.

Evil-mode cursor color set, mode-line color set and
evil-move-cursor-back set to nil.
Evil-move-cursor-back set to nil.

Also changed the cursor color to "OrangeRed".
Change prefix key \M-c to \M-g.

Resume the key "\M-c" for capitalize-word and change the prefix key to
"\M-g".
Modifications in init-thing-edit.el and init-misc.el.
gnus setup.