CLOUDSTACK-2672: Adding isVolatile parameter in service offering response object
Signed off by :- Nitin Mehta <nitin.mehta@citrix.com>
generate an action event when portable IP association is transferred
from a network to different network
CLOUDSTACK-2700:on network/vpc delete, portable IP should be still
associated with account

Unlike public ip which gets dis-associated (released) with the account
on network/VPC delete, portable IP should continue to be associated with
the account even when the network/VPC with which it is currently
associated in deleted. This fix ensures portable IP are associated to
account even after network/vpc is deleted.