Mailgraph was written by David Schweikert <dws@ee.ethz.ch>

Queuegraph was written by Ralf Hildebrandt

Mailgraph_ext is an integration of mailgraph and queuegraph.

Author:

Chi-Keung Ho (He zhiqiang) <hzqbbc@hzqbbc.com>

Building 10, RM701
West Tai-shark road,
Wong-pu district, GZ of China