VitruvianOS 0.5.0

This is the login and media release. 0.4.1 got the filesystem talking to Tracker. 0.5.0 gets the desktop talking to real users and starts wiring up a real audio pipeline. Changelog Multi-user login. Janus now runs a pre-auth chain as a dedicated vos_login sysuser, launches the greeter, and after PAM authentication respawns the graphical stack as the real user. Autologin is still supported for CI…