1) added createDetail to ResourceDetailDao interface to provide generic way of creating resourceDetail DB objects
2) added resource details support for firewall rules
1) Added support for Zone resource details
2) Renamed DcDetailsDao to DataCenterDetailsDao to follow the CS name convention for DataCenter related classes
ACS is now comprised of a hierarchy of spring application contexts.
Each plugin can contribute configuration files to add to an existing
module or create it's own module.
Additionally, for the mgmt server, ACS custom AOP is no longer used
and instead we use Spring AOP to manage interceptors.