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
add a timewait after arping call, with a comment to evaluate whether to wait() at all
Merge branch 'maint/3.2/testing' into dev/nurmi/euca-2973
BFEBS run instance failure. RollbackException: Error while committing the transaction
Fixes EUCA-4271
Merge branch 'maint/3.2/testing' of git.eucalyptus-systems.com:eucalyptus into dev/juphoff/euca-2973
Merge branch 'maint/3.2/testing' of git.eucalyptus-systems.com:eucalyptus into dev/juphoff/euca-2973
clean up
Merge branch 'dev/kedwards/EUCA-4271' into maint/3.2/testing
Merge branch 'maint/3.2/testing' of git.eucalyptus-systems.com:eucalyptus into dev/juphoff/euca-2973
EUCA-4544: restored 1006.xml (out of db connections)
Added support for setting CPPFLAGS for EUCA-2700
Merge branch 'maint/3.2/testing' of git.eucalyptus-systems.com:eucalyptus into dev/juphoff/euca-2973
Merge remote-tracking branch 'remotes/origin/dev/ethomas/EUCA-4544' into maint/3.2/testing
EUCA-4530: display warning when eucalyptus account is used for logging in