More packages, less hacks (ido episode).

Vivat MELPA! There are now packages implementing hacks I've had for ages
in my .emacs.d. And they do it better to boot.

Today's treats:

 - ido-ubiquotus
 - ido-vertical-mode
 - flx-ido
Don't use auto indentation in prop snippet.

python-mode does weird things with the prop snippet when asked to
auto-indent it.. I'll have to live with hardcoded 4-space indents
instead (not hard at all, as that's what PEP8 recommends).