This happened when permitted duplicate values existed in the very
last lines, right before end-of-file.
Thanks to Radu Gheorghe for reporting this bug.
this permits us to keep a persistent test environment between
v4 and v5, most importantly using the same tools. As far as the
actual tests are concerned, some had issues. I had no time to check
if that was an issue with the test or an actual issue with the
v3/4 engine. Will do that at some later stage.
It is checked that many tcp connections are properly handled. While
adding this test, I noticed that there is a bug in imtcp that prevents
creation of more than 200 connections. This bug still exists, so the
test suite currently fails (what is correct). Will be addressed soon.
