ct_sync now fully modular

ct_sync is now able to run multiple instances on one node, allowing vrrp-like setups! Thanks go to http://svn.netfilter.org/netfilter/branches/netfilter-ha/linux-2.6-actact/

The next couple of weeks will be focusing on testing and real active-active setups with multiple masters. My brain is already smoking from all the synchronization issues ;)