OLSR 0.6.5.2 released

This is a quick bufix release for 0.6.5.1

There was a logic bug in handling the return value of inet_pton() which resulted in IPv6 support being broken.
This is fixed now.

In addition, Vasilis added a fix for Quagga which closes a memory leak.

Please update in case you use IPv6 or Quagga support.
You can find the release via the usual download link.