Milestone ViSE: S2.l Demo experiment with another testbed

[M10, D3 and D4] Demo testbed resources shared among multiple experiments. Demo experiments that include resources in multiple testbeds. Demo easy access and testbed use by end-users at GEC. [Experimental control framework, exporting common functionality needed to execute experiments such as, automatic file distribution, sequenced process workflow execution, log file collection, and experiment monitoring.] (7/20/10, GEC8)