Bugfix to OSPF reconfiguration.
Bugfix in latest OSPF changes.
Changes order of iface/addr/neigh event hooks.

Now the order is:

Up   -> iface, addr, neigh
Down -> neigh, addr, iface

It fixes the case when an iface appears, related static routes are
activated and exported to OSPF before the iface notification and
therefore forwarding addresses are not encoded in generated external
LSAs.