* First fix for opening clusters, added unit tests
* Added opening of child cluster to parent cluster
* Added more tests for multi-level clusters
* Commenting fixes
* Added unit tests for option allowSingleNodeCluster, fixes due to that
* Added test for allowSingleNodeCluster with nested clusters
* Fixes due to linting
* Removed TODO from code
* Enables require MethodDefinition for require-jsdoc lint rule and corrects 66% of missing Method Definitions
* Adds jsdoc for all remaining methods and corrects @class/@constructor documentation
* Define values more accurately
* Correct bugs that prevent jsdoc generation