ostree.modules: Add libsoup
ostree.modules: Add libsoup

This isn't *too* hard to build on RHEL6 actually.

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