3.6: Add libsecret, needed by latest gnome-online-accounts
3.6: Add libsecret, needed by latest gnome-online-accounts

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