[syslog-ng] libol bundled with syslog-ng

Hi, This is just a short notice that I'm bundling the libol source from tomorrow's snapshot with syslog-ng, so it will be much easier to create packages for various distributions as there will not be a need to create a separate libol package. The reasoning behind this is nothing but syslog-ng uses libol. The syslog-ng configure script is modified to look for an installed libol first and then attempt to use the bundled libol within the tarball. This way the configure script is believed to remain compatible. This also means that the distribution tarball becomes a larger, so don't be surprised. -- Bazsi