some APKs do not have a name, like system APKs
some APKs do not have a name, like system APKs

It is not necessarily a good idea to try to distribute system APKs via
FDroid, but `fdroid update` should just ignore APKs it cannot handle rather
than die and prevent a repo from being fully created.  This is necessary to
handle the automatic creation of repos, like for debug builds from a
Jenkins server.

fdroidtravis/fdroidserver,fdroidtravis/fdroidserver,fdroidtravis/fdroidserver,matlink/fdroidserver,f-droid/fdroid-server,OneEducation/AppUniverse_Server,OneEducation/AppUniverse_Server,OneEducation/AppUniverse_Server,matlink/fdroidserver,f-droid/fdroidserver,f-droid/fdroidserver,f-droid/fdroidserver,f-droid/fdroidserver,matlink/fdroidserver,matlink/fdroidserver,matlink/fdroidserver,fdroidtravis/fdroidserver,f-droid/fdroid-server,f-droid/fdroid-server,f-droid/fdroidserver,OneEducation/AppUniverse_Server,f-droid/fdroid-server,f-droid/fdroid-server,OneEducation/AppUniverse_Server