Microsoft-CISL/REEF — pull request #907 by yunseong (2014-07-14 04:57:27+00:00)
Title: Fix the driver and task configuartion to make the example work

This fixes the issue of Groupcomm example described in Microsoft-CISL#756.
Some configurations on Driver and Task were missing.

Acknowledgement : @jsjason provided a solution for this issue. He is currently working with @bgchun as an intern at CMS laboratory in SNU.