Initial commit after changing java version to 1.8. Mostly reformatting of files. Removed Cancelable from Task. Instead it extends RunnableFuture. Also added junit test ClusterTests
Reformatting, adding final designators to fields, etc.
Many changes in response to javadoc plugin errors
Javadoc fixes. Also deleted the delete method from TupleKDTree and added another method to its junit test class
Fixed javadoc comments in clodhopper-examples