More tweaks after swith to ubuntu

* etc/emacs/holy/holy-startup.el (holy-load-el-snippets): Add just 'emacs' to
load-path.

* etc/stumpwm/common/50keys.lisp (xmodmap): Commend this out for now.

* etc/stumpwm/linux/50web-browser.lisp (chrome): Use chromium on linux.
Add basic gnus configuration for linux