Add vimroom, WriteRoom for Vim

Signed-off-by: Douglas Drumond <douglas@eee19.com>
use transparency

Signed-off-by: Douglas Drumond <douglas@eee19.com>
increase tab for at least 4

Signed-off-by: Douglas Drumond <douglas@eee19.com>
add vimroom shortcut

Signed-off-by: Douglas Drumond <douglas@eee19.com>