Remove dupe test
Update CONTRIBUTING.md

Small typo
Merge pull request #1535 from olid16/patch-1

Update CONTRIBUTING.md
Merge pull request #1523 from jasonLaster/dupe-test

Remove dupe test
Add getRegionManager method and use in _initRegionManager method.
Update docs with getRegionManager method
Add _initializeRegions and move _initRegionManager inside it.
Add region options section to docs