Added preliminary HACKING file.
treec0dbc6c466a82873847e51b6a368d5cf03a8cf78
-rw-r--r-- 18004 COPYING
drwxr-xr-x - incoming
-rwxr-xr-x 1150 mktar.pl
drwxr-xr-x - patches
drwxr-xr-x - src