add more link layer types (Guy Harris)
Use "name" and "use" so that we have only one set of entries for pcap
files, and add a bunch of additional link-layer header types. (Guy Harris)
PR/229: Fix not portable pointer comparison code.
the continuation error is a magic error.
document magic_version
implement magic_version
$> does not work all the time
PR/225: beat x86 boot sector