daemon: use gnome-session session files instead of autostart
Before we were doing some sort of weird hybrid thing with a session file and an autostart directory that wasn't that much different than just having an autostart directory by itself. Now we fully define the session component list from the session file, and merely provide a pool of new candidate desktop files to select that sessoin from. This modernizes how we use gnome-session and as a side-effect enables us the ability to have fallback sessions (which will be important when defaulting to a shell based greeter later).
Showing with 54 additions and 144 deletions
data/greeter-autostart/gdm-simple-greeter.desktop.in.in → data/applications/gdm-simple-greeter.desktop.in.in