Fixed filter-aaaa prereq.sh
[v9_11] simplify prereq checks by using feature-test.c 4498. [test] Simplify prerequisite checks in system tests. [RT #43516] (cherry picked from commit 5480a74b70651d49dd79bb762a65203512ec2725)
4487. [test] Make system tests work on Windows. [RT #42931]
4401. [misc] Change LICENSE to MPL 2.0.
use SKIPPED exit code (255)
update copyright notice
[master] testcrypto.sh in system tests 3714. [test] System tests that need to test for cryptography support before running can now use a common "testcrypto.sh" script to do so. [RT #35213]
reverse bad copyright update
2920. [func] Allow 'filter-aaaa-on-v4' to be applied selectively to IPv4 clients. New acl 'filter-aaaa' (default any).