Fix the youtube alias

Had trouble with the url interpolation on zsh
LIBDOTFILE-6 Fix issue installing dotfiles

When installing locally sudo operations require the sudo pass.
LIBDOTFILE-7 Fix issue installing dotfiles

Remove old powerline configuration and installation
LIBDOTFILE-8 Fix issue installing dotfiles

The synchronise command appears to have issues with the paths, as it
does not work relative to the files role directory.
Merge branch 'release/0.0.13'