Bump copyright date to 2018.
treea1a8b80a6272590825a4fecc1fb06b6fd90f817c
-rw-r--r-- 71 .gitignore
-rw-r--r-- 2932 COPYRIGHT
-rw-r--r-- 5595 Makefile
-rw-r--r-- 441 README
drwxr-xr-x - doc
drwxr-xr-x - dynasm
drwxr-xr-x - etc
drwxr-xr-x - src