taglib/taglib — pull request #71 by TsudaKageyu (2012-10-04 09:08:12+00:00)
Title: Add a common base class for string handlers (revised)

Added an abstract class ```TagLib::StringHandler``` as the common base class of ```TagLib::ID3v1::StringHandler```, ```TagLib::ID3v2::Latin1StringHandler``` and ```TagLib::RIFF::Info::StringHandler```.
This patch aims to allow users not to implement duplicate string handlers.