Update GPL version and copyright notice in docs.
tree3fc7241c0e30086c4dd6fabbeebd917152209fbd
-rw-r--r-- 35147 COPYING
drwxr-xr-x - incoming
-rwxr-xr-x 1150 mktar.pl
drwxr-xr-x - patches
drwxr-xr-x - src