New features:
#72 Rename file(s) in a zip
#100 Expose ExecutorService used by zip4j via ZipFile api
#120 Support for 7-Zip format split files (.zip.001, .zip.002, etc)
#125 Better Symlink support
#136 Passing custom thread factory to be used by zip4j in thread mode
Bug:
#146 ZipInputStream.read() should return masked byte value (and not negative values)