#188 Can't get ID3FID_PICTURE frame with ID3 v2.4

[Alan Zhang]

The lib can't get an ID3FID_PICTURE frame from a file with ID3 v2.4 tag (e.g files made by Nokia music Manager). I found the Winamp 5.5 can display it but can't modify it too.

[Pander]

Please support v2.4, see e.g. https://sourceforge.net/p/id3v2/bugs/52/