Fixed a bug on stripping tags when saving .WAV files.
Added some missing detach()s to List<T>, ByteVector and String.
Merge pull request #422 from TsudaKageyu/detach

Added some missing detach()s to List<T>, ByteVector and String.
Merge pull request #421 from TsudaKageyu/fix-wav-strip

Fixed a bug on stripping tags when saving .WAV files.
Removed the nested RefCounter from ByteVector.