Closes #370 - Create unit test for RowColumn class in API
Merge pull request #371 from mikewalch/fluo-370

Closes #370 - Create unit test for RowColumn class in API
Closes #310 - FluoFactory should instruct users to include fluo-core jar if class instantiation fails
Merge pull request #376 from mikewalch/fluo-310

Closes #310 - FluoFactory should instruct users to include fluo-core jar...
Closes #362 - Made API data objects immutable.  Created MutableBytes object for core.