adding nemo versioned props
removing 'data' module require line
fixing up the cascade of extra options. read first from default config, then from specific task config, then iteration config, and merge in order (default<=task-specifc<=iteration)
add logging of env vars
editing README with new interface details
0.3.0
change logic for adding mocha option arg value so passing in empty string will NOT add a blank value to localopts array
0.3.1