I added the LANalzyer file format to wiretap. I cleaned up some code in the

I added the LANalzyer file format to wiretap. I cleaned up some code in the
wiretap functions to be more generic and therefore allow an easier integration
of more packet-capture file types. I also put in all the GPL copyrights in the
wiretap code.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@83 f5534014-38df-0310-8fa8-9805f1628bb7