Hello,
The avp_aliases (string) parameter and the avp_write(value,name) function has been removed in 1.3. It is ok to keep them there for 1.3 (although I would prefer to have them transfered to FAQ section: "what happened to avp_aliases" and "what happened to avp_write"), but the reference to dead functionality older then 2 releases should be removed from 1.4 documentation.
Regards, Ovidiu Sas