service/vrrp: fix bugs.

- router.py: vrrp_config_change_request AttributeError
AttributeError: 'VRRPRouterV3' object has no attribute 'address_owner'

- manager.py: list_request_handler TypeError
TypeError: __init__() takes exactly 5 arguments (4 given)
app_manager: mod uninstantiate() attribute to app name
vrrp: add state to VRRPInstance
Merge pull request #1 from yamada-h/vrrp-update

Vrrp update