scafolding work would be required otherwise, as they can only be compiled by 
  the NVidia compiler, and I don't have the time for that now.
Provided macros for cudahybrid related ICMs.
Expanded the number and arguments of cudahybrid primitive functions to better
  match the required ICMs, specifically distinctions between host and device
  transfers and arguments for setting ownership of data.
Created specific ICM for (de)allocation and reference counting of distributed
  variables.
Modified kernel launches to make use of streams on cudahybrid backend.