This avoids having to copy testresults, makes results of cancelled runs
browsable (runs may actually be followed live) and preserves old results
when rebuilding guest images (e.g. when using the build-strongswan script).
The number of consecutive test runs without any intermittent rebuild of the
guest images is also not limited by the image size anymore.
It is still compatible with the current release as the config in
sites-available will be ignored, while conf-enabled does not exist and
is not included in the main config.
This script can be used in pretest.dat files to wait until an IPsec
connection becomes available. This avoids unconditional sleeps and
improves test performance.
The ipv6 tests have been updated to use the expect-connection script.