Simplify 50gnus.el
More essential hacks
HOMEDRIVE and HOMEPATH set in emacs
More fixes

* etc/emacs/common/50extra.el (ido-completing-read): Simplifly imenu and ido combo.

* etc/emacs/common/50look-and-feel.el (indent-tabs-mode): important setting

* etc/emacs/common/80external.el: new file, sets up ido-vertical-mode and flx-ido-mode
Nice naive joaot/find-file-in-project

* etc/emacs/common/50extra.el (ido-completing-read): Simplifly imenu and ido combo.

* etc/emacs/common/50extra.el (kbd): nice naive joaot/find-file-in-project
Set safe print length and level from swank

* etc/swank/common/30safe-print-length-and-level.lisp: add it