debian/changelog: Release 2.1-2 to Debian

Brown paper bag release for the watch file.

debian: Release 2.1-1

With the upstream release of 2.1, also release 2.1-1 in debian.

debian: Release 2.1-1

With the upstream release of 2.1, also release 2.1-1 in debian.

build: Drop .out codes.dat intermediate

Signed-off-by: Kees Cook <kees@outflux.net>