add some class id matching (from Christoph Biedl)
Debian#609211 from Christoph Biedl
Debian#573362 (Christoph Biedl)
add some binary patterns for scripts (Debian#707014)
See Debian#657545: The "Linux/i386 core file" rule in linux:42 has a
bigger strength (70) than "JPEG image data" in jpeg:12 (50). As a
result, the provided file is mis-detected as "Linux/i386 core".
add magic_errno (Debian#696113)
encode filename (Debian#435397)
add QEMU images