Silence Initialization Order Warnings.

WinXP & MinGW-4.7.2

Still get one warning that I have been unable to resolve as of yet.:
```In file included from taglib/taglib/toolkit/tlist.h:255:0,
                 from taglib/taglib/toolkit/tstringlist.h:30,
                 from taglib\taglib\fileref.h:30,
                 from taglib\taglib\fileref.cpp:37:
taglib/taglib/toolkit/tlist.tcc: In instantiation of 'void TagLib::List<T>::ListPrivate<TP*>::clear() [with TP = const TagLib::FileRef::FileTypeResolver; T = const TagLib::FileRef::FileTypeResolver*]':
taglib/taglib/toolkit/tlist.tcc:73:5:   required from 'TagLib::List<T>::ListPrivate<TP*>::~ListPrivate() [with TP = const TagLib::FileRef::FileTypeResolver; T = const TagLib::FileRef::FileTypeResolver*]'
taglib\taglib\fileref.cpp:288:1:   required from here
taglib/taglib/toolkit/tlist.tcc:79:9: warning: deleting object of abstract class type 'TagLib::FileRef::FileTypeResolver' which has non-virtual destructor will cause undefined behaviour [-Wdelete-non-virtual-dtor]```

-Enjoy
fh : )_~