Add a call out to arping whenever an IP is assigned to the public interface (happens on CC failover, instance restoration, and elastic IP assignment).  Th\
e callout broadcasts an unsolicit
ed ARP message to the network which should cause servers/network devices on that network to flush and renew their ARP caches for the assigned IP.

    Fixes: EUCA-2973 EUCA-3450
EUCA-4112: disable CC image proxy cache when size set <= 0
Merge branch 'maint/3.2/testing' of git.eucalyptus-systems.com:eucalyptus into dev/juphoff/euca-4112
EUCA-4112: improve logging of CC images proxy cache settings
Fix to EUCA-4403 Check that PENDING cleanUp doesnt unassign an address from unrelated instance.

Fix things needed to test fix to EUCA-4403
Fixes for EUCA-4393 on the CLC and CC side to handle network initialization and timeouts.

Squashed commit of the following:

commit 7d0f12db965969152241e4e8803412fd2e4639a9
Author: Daniel Nurmi <nurmi@eucalyptus.com>
Date:   Wed Dec 12 17:08:56 2012 -0800

    CC back-end fix to increase time that an extant network is maintained before stopped due to no extant VMs.  Fixes EUCA-4393

commit 1d0496e63a8549312989d8b48d1c26c582746711
Author: Zach Hill <zach@eucalyptus.com>
Date:   Wed Dec 12 16:35:57 2012 -0800

    Changes to if() conditions on teardown to make network tag and index timeouts behave correctly during instance construction.
Message component check now verifies message class (EUCA-4407)

The message component check now verifies the message class rather than
the message object. This prevents a reference to each message being
retained which would exhaust memory.

Fixes EUCA-4407
Fix transaction handling in OverlayManager (EUCA-4408)

Transactions were being opened but not completed in the attachVolume and
deleteVolume methods.

Fixes EUCA-4408
Merge branch 'dev/grze/EUCA-4403' into maint/3.2/testing
EUCA-4233: init scripts now source $LOCALE from /etc/sysconfig/i18n
Merge branch 'maint/3.2/testing' of git.eucalyptus-systems.com:eucalyptus into dev/juphoff/euca-4233
EUCA-4499: disassociate address releases the address
Fixes EUCA-3902. Fixes indentation.
Fixes EUCA-3902. Fixes Indentation.
Merge branch 'maint/3.2/testing' of git.eucalyptus-systems.com:eucalyptus into dev/juphoff/euca-4112
Updating README: this feature is now called the Eucalyptus User Console
Fixes EUCA-4568
Removing out-of-date disclaimer
EUCA-2184 EBS backed stopped instances still reports IPs
EUCA-1057 second euca-deregister doesnt deregister the image completely
EUCA-2366 Unclear error message when attempting to create a volume larger than permitted