[syslog-ng] 3.3 memory leaks

Hi, I think I have closed the memory leaks reported on syslog-ng 3.3.0beta2, so hopefully it is now more usable now in production. All fixes pushed to the git tree. I haven't received other issues, and I saw some success reports, so we're gearing towards a final release. I'd appreciate further testing though, but if nothing major shows up, I'm going to prepare 3.3.1 in the next couple of weeks. -- Bazsi