closes #347 modified stress test to support multiple roots inorder to avoid collisions
Merge pull request #360 from keith-turner/fluo-347

closes #347 modified stress test to support multiple roots inorder to av...
Closes #348 - Clean up ScannerConfiguration and create unit test
Merge pull request #358 from mikewalch/fluo-348

Closes #348 - Clean up ScannerConfiguration and create unit test
Closes #235 - Replace ArgumentChecker with Preconditions everywhere
Closes #367 - Removed checked exceptions from get methods in SnapshotBase
Merge pull request #366 from mikewalch/fluo-235

Closes #235 - Replace ArgumentChecker with Preconditions everywhere
Merge pull request #368 from mikewalch/fluo-367

Closes #367 - Removed checked exceptions from get methods in SnapshotBas...
Closes #359 - Modified Column by adding isSet methods and removing
setVisibility method.  Also, created unit test for Column.
Merge pull request #364 from mikewalch/fluo-359

Closes #359 - Modified Column by adding isSet methods and removing