values for MD5 password ID changed during reconfigure, Second
bug is that BIRD chooses password in first-fit manner, but RFC
says that it should use the one with the latest generate-from.

It also modifies the syntax for multiple passwords.
Now it is possible to just add more 'password' statements
to the interface section and it is not needed to use
'passwords' section. Old syntax can be used too.

are in single database. This avoids duplication of external LSAs and
fixes bug in external LSA distribution.

Origination of summary LSA works.
Routing table calculation works.
Virtual links works.

Well, I hope, OSPF is fully compatible with RFC2328!!!!

Packet receiving clean up.

	- metric is 3 byte long now
	- summary lsa originating
	- more OSPF areas possible
	- virtual links
	- better E1/E2 routes handling
	- some bug fixes..

I have to do:
	- md5 auth (last mandatory item from rfc2328)
	- !!!!DEBUG!!!!! (mainly virtual link system has probably a lot of bugs)
	- 2328 appendig E

Well it's strange, but, actually it's correct.

Finally, I found the bug reported by Andreas Steinmetz. FIXED.

DIRECT acks can be sent in one packet now.

Thanks you Harry Moyes.

it does not sends nor listens packets.)

I added some new options, please look at it and look into doc if it's OK.