Update to use XDG Cache Home for thumbnails
Update to use XDG Cache Home for thumbnails

https://bugzilla.gnome.org/show_bug.cgi?id=675170

xkahn/gvfs-cmis,gicmo/gvfs,halfline/gvfs,philipl/gvfs,gicmo/gvfs,xkahn/gvfs-cmis,xkahn/gvfs-cmis,philipl/gvfs,halfline/gvfs,philipl/gvfs,halfline/gvfs,xkahn/gvfs-cmis,gicmo/gvfs,gicmo/gvfs