warn and ignore graphics files that have no matching app metadata
warn and ignore graphics files that have no matching app metadata

If there are graphics files that are in repo/ but there is no metadata for
the associated app, then do not include the graphics in the index. Issue a
warning about this.

fdroidtravis/fdroidserver,f-droid/fdroid-server,f-droid/fdroidserver,f-droid/fdroid-server,f-droid/fdroidserver,fdroidtravis/fdroidserver,fdroidtravis/fdroidserver,f-droid/fdroid-server,f-droid/fdroidserver,f-droid/fdroid-server,f-droid/fdroid-server,fdroidtravis/fdroidserver,f-droid/fdroidserver,f-droid/fdroidserver