Linux. The USB sniffing code for Linux now supplies a per-packet header
based on the one supplied by the Linux binary sniffing interface, so we
add a new DLT_ value and use that.
Fix his e-mail address, and add him to the credits.
Abeni.
Added DLT/DLT name table mappings and linktype values and DLT/linktype
mappings for USB and for the Bluetooth NCI UART transport layer.
Fix up indentation.
source directory and the target include directory, and have include
files at the top-level directory to include those headers, for backwards
compatibility.
Update the FILES and INSTALL.txt files to reflect current reality.