const T& func() const;

[Nick Shaforostoff]

I'm going to change
    KFileMetaInfo metaInfo(bool autoget = true,
                                   int what = KFileMetaInfo::Fastest) const;
to
    const KFileMetaInfo& metaInfo(bool autoget = true,
                                   int what = KFileMetaInfo::Fastest) const;
and other similar occurences if i find them
this Monday. ok?