Improve checkout_script.sh
Improve checkout_script.sh

Add print statements everywhere to mention what's being done

If the newly created tmp-enable-settings and tmp-dot-vimrc-custom match
what's already there, delete them, so the user has one less hassle to
worry about

Show a diff if there's something to diff between something local to the
machine and the newly generated enable-settings/dot-vimrc-custom

harisund/dot-files