
The OS-EXT-STS:power_state attribute in a server GET response is enum values which are meaningless unless you look at the nova/compute/power_states.py code. This change adds a mapping to the description on that field in the api-ref. Note there are gaps in the sequence, those are for unused values as seen in the nova.objects.fields.InstancePowerState class. Change-Id: I2ef9f493e66ab04b13f439e73247dc306a1514b4