bugz id: 113. Initial check in of regression script.

Just iterate over the intended platforms,workloads and configs.
bugz id: 113. Put in commands for running tests.

Also change the default config to be blank (record size of 1000)
Bugz id: 115. Putting back in use of log4j

Nop logger was dumping data on stderr. Changing back to usign log4j to get
rid of printouts.