AdPlug core library 1.4 released

Version 1.4 of the AdPlug core library was released today!

From the NEWS:
- Documentation changed into Texinfo format.
- New, modularized file loading framework.
- Now using 'libbinio' for platform-independant binary I/O.
- Added database framework for storing music file information.
- Uses newest fmopl OPL2 emulator version 0.60 from MAME 0.66.