changing the enum type

[Richard Hughes]

At the moment DeviceKit-power has the "wire" type of string for state.
Internally, this is represented by:

typedef enum {
	DKP_DEVICE_STATE_CHARGING,
	DKP_DEVICE_STATE_DISCHARGING,
	DKP_DEVICE_STATE_EMPTY,
	DKP_DEVICE_STATE_FULLY_CHARGED,
	DKP_DEVICE_STATE_UNKNOWN
} DkpDeviceState;

I'm intending to change the DBus interface so that I can use
g_object_set and g_object_get internally without doing _to_string()
_from_string() all over the code tree.

As long as I document the enum values, this is okay, right?

Richard.