taglib/taglib — pull request #140 by TsudaKageyu (2013-04-16 21:49:29+00:00)
Title: Replace RefCounter with a smart pointer

Replaced ```RefCounter``` class with a smart pointer like ```std::shared_ptr``` to get rid of ugly preprocessor conditionals and complicated ref/deref operations.
This feature is enabled when ```ENABLE_CXX11``` option is not set, otherwise ```std::shared_ptr``` is used.