Fix the get/set state method
Fix the get/set state method

The timestamp value should be return.

Change-Id: Ic4d473c43a6e53a28096227c53530f8b90e20f90

openstack/cloudkitty,stackforge/cloudkitty,stackforge/cloudkitty,muraliselva10/cloudkitty,FNST-OpenStack/cloudkitty,muraliselva10/cloudkitty,FNST-OpenStack/cloudkitty,openstack/cloudkitty