Netflix/RxJava — pull request #819 by akarnokd (2014-02-05 22:18:31+00:00)
Title: CompositeSubscription performance increase

- Optimized the case when the composite holds only a single element.
- Replaced Arrays.copyOf with regular arraycopy to avoid the cost of reflective array creation
- Included perf test where I got 32% increase on my i7 4770K