Move the key binding for 'browse-url-at-point' to "g w" from "g u"

The key binding "g u" is already used to downcase.
Remove the advice for evil-refresh-cursor
Set the base font name to "DejaVu Sans Mono" directly
Add the path to the ddskk directory to load-path.
Put a large SKK dictionary.
Install 'ddskk' into ./site-lisp.
Add 'skk-autoloads.el' generated by make.