dotvimdir: update vim-fugitive and vim-unimpared

...to latest.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
buildinfo: new directory

Here is a new directory which contains notes on how to build a couple
applications which I build semi-regularly by hand.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
appinfo: thunderbird

Info on how to get nice coloured diffs.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>