- Fixed crash in AttachedPictureFrame and GeneralEncapsulatedObjectFrame

  caused by using uninitialized pointer. (BUG:151078)
- Make Frame::readStringField to actually read the string field.
- Fixed parsing of APIC frames -- there is one-byte type between mime type
  and description. The code worked only thanks to the previous bug.


git-svn-id: svn://anonsvn.kde.org/home/kde/trunk/kdesupport/taglib@735035 283d02a7-25f6-0310-bc7c-ecb5cbfe19da