GFL Library upgraded to version 2.20:
Added GFL_ALLOCATEBITMAP_CALLBACK, GFL_PROGRESS_CALLBACK & GFL_WANTCANCEL_CALLBACK callback
Added gflSetIPTCValue & gflRemoveIPTCValue to change IPTC value
Added gflLoadIPTC, gflSaveIPTC, gflBitmapSetIPTC
Added gflJPEGGetComment, gflJPEGSetComment, gflPNGGetComment, gflPNGSetComment
Added Support of long pathname on Windows NT (with \\?\)
Added gflGetFileInformationFromMemory, gflLoadBitmapFromMemory, gflLoadThumbnailFromMemory
Fixed Many bugs & improved speed