2004b5964e
After discussion with people outside of Ceilometer, it seems that absolute is a confusing name. For example, what we call currently 'delta' is called 'absolute' in RRD. Using gauge seems to be clearer. Change-Id: I1b686e34a1294cbdd35cdb84e3ab9c6c78df04dd Signed-off-by: Julien Danjou <julien@danjou.info>