Emacs stuff

added lua-mode, improved expand

Signed-off-by: Tomas Sedovic <tomas@sedovic.cz>
Update init.el

Signed-off-by: Tomas Sedovic <tomas@sedovic.cz>
Remove automatic git signoff alias

Signed-off-by: Tomas Sedovic <tomas@sedovic.cz>
Use correct Python shebang for the `virt` scrept

Signed-off-by: Tomas Sedovic <tomas@sedovic.cz>