Version 1.2.5: added handling of bext and cart chunks
Version 1.2.5
Added support for bext (broadcast extension) and cart chunks in .wav files, as used by the Radio industry.
If the input and output files are both .wav files, and the input file contains bext or cart metadata, then this metadata will be transferred to the output file.
Note: 27th March 2017: fixed error with incorrect dlls : updated zip to include libsndfile v1.0.27 dlls