Update zebra port to 0.68

From the announcement on the zebra mailing list:

ospfd is much improved.  DR election bug is fixed.  Database
description can be sent and received.  Now Neighbor State Machine
goes to Full.  We are working on zebra-0.70 can provide real OSPF
routing feature.

bgpd aggregate-address command is added.  At this momemnt summary-only
aggregation is supported.  `ip community-list' command is added.
New route-map command such as `set community' or `match community'
is added.

zebra's IPv6 related bug is fixed.  VTY input buffer overflow bug
is fixed.

DEFUN can eat (a|b|c) statement.  So (deny|permit) is useful for
like this:

bgpd(config)# access-list test ?
  deny              Access list for denies
  permit            Access list for permits

Changes in zebra-0.68
++ Changes in lib
- DEFUN() is extended to support (a|b|c) statement.
- Input buffer overflow bug is fixed.
++ Changes in bgpd
- `ip community-list' is added.
- set community and match community is added to route-map statement.
- aggregate-address A.B.C.D/M partly works.  Now it works only
  summary-only mode.
++ Changes in zebra
- IPv6 network address delete bug is fixed.
++ Changes in ospfd
- DR election bug fixed.
- Now Database Description can be send or received.
- Neighbor State Machine goes to Full state.
++ Changes in ospf6d
- router zebra related bug is fixed.

0 files changed, 0 insertions, 0 deletions