Aliases modified for (sudo) emacsclient
Refacto + add timestamp in old_dir

Timestamp yyy-mm-dd appended at the end of backup dir name

miscellaneous refactoring
Add some git aliases
Fix bug with tmux + manage ssh key for polopeche
refactor setup-dotfiles.sh

Remove unnecessary operations and echos.

Add tests whether former files exist.

Variables instead of hard references to various dirs.
Add lubuntu-rc.xml file to dotfiles
remove name to mutt config file
Merge branch 'init-pr'

Conflicts:
	bash_aliases
	setup-dotfiles.sh