Currently these tests are allow_query, rpzrecurse and serve-stale
1. Function to copy files and set port numbers renamed from copy_config
to copy_setports, as this is used to change the ports in Perl and Python
test scripts as well.
2. Changes to rpzrecurse/tests.sh to handle two calls to getopts (one to
parse port numbers, the other to parse rpzrecurse-specific options). Also
fixed various commands to use correct ports.
3. Updates to "clean.sh" scripts to ensure that all files created in the
test are removed.
(cherry picked from commit 78f2b9ca01)