output an information page in case a resource cannot be downloaded
output an information page in case a resource cannot be downloaded

Some further, smaller improvements were made.
MiltosD/CEFELRC,MiltosD/CEF-ELRC,zeehio/META-SHARE,zeehio/META-SHARE,zeehio/META-SHARE,MiltosD/CEFELRC,JuliBakagianni/META-SHARE,zeehio/META-SHARE,MiltosD/CEF-ELRC,zeehio/META-SHARE,JuliBakagianni/META-SHARE,zeehio/META-SHARE,JuliBakagianni/CEF-ELRC,JuliBakagianni/META-SHARE,JuliBakagianni/CEF-ELRC,JuliBakagianni/CEF-ELRC,JuliBakagianni/META-SHARE,JuliBakagianni/META-SHARE,MiltosD/CEFELRC,MiltosD/CEF-ELRC,JuliBakagianni/CEF-ELRC,JuliBakagianni/CEF-ELRC,MiltosD/CEF-ELRC,JuliBakagianni/CEF-ELRC,MiltosD/CEF-ELRC,JuliBakagianni/META-SHARE,MiltosD/CEF-ELRC,zeehio/META-SHARE,MiltosD/CEFELRC,MiltosD/CEFELRC,JuliBakagianni/CEF-ELRC,MiltosD/CEFELRC,MiltosD/CEF-ELRC,MiltosD/CEFELRC,JuliBakagianni/META-SHARE