CLOUDSTACK-7978 : Fixed the script 'test_egress_rules.py' - Zone Network Type Information should to be passed to VirtualMachine create method
CLOUDSTACK-7979 : Fixed the script 'test_security_groups.py' - Zone Network Type Information should to be passed to VirtualMachine create method
CLOUDSTACK-7980 : Fixed the script '/maint/test_egress_rules_host_maintenance.py' - Zone Network Type Information should to be passed to VirtualMachine create method
CLOUDSTACK-7981: listVirtualMachine is too slow in case of duplicate
    resource tags due to joining user_vm_details to user_vm_view.