autobuilder: Add hacky --autoupdate-self option
autobuilder: Add hacky --autoupdate-self option

Going to use this on the build server...it's better than nothing.  The
real fix is hard.

djdeath/gnome-ostree,GNOME/gnome-ostree,djdeath/gnome-ostree,chergert/gnome-continuous,chergert/gnome-continuous,djdeath/gnome-ostree,GNOME/gnome-ostree,vrutkovs/vrutkovs.github.io,vrutkovs/vrutkovs.github.io,chergert/gnome-continuous,vrutkovs/vrutkovs.github.io,GNOME/gnome-ostree