~/.vimrc: Set title.

.vimrc

@@ -61,6 +61,12 @@ set directory=~/.vim/tmp/
set undodir=~/.vim/tmp/
set undofile
let &t_ts = "\e]2;"
let &t_fs = "\007"
set title
set titleold=
au BufEnter * let &titlestring=substitute(expand('%:p'), '^' . $HOME, '~', '')
" Wrap lines in textfiles automatically.
" (Any way to enable in comments?)
set textwidth=72