2.0.8 release preparations

[akarnokd]

Version 2.0.8 - March 29, 2017 (Maven)

API enhancements

• Pull 5161: Add Observable.switchMapSingle()
• Pull 5184: Add offer() method to PublishProcessor & BehaviorProcessor.
• Pull 5197: Add ParallelTransformer interface.
• Pull 5217: UnicastSubject fail-fast support.
• Pull 5202: Add resilient versions of parallel map(), filter() and doOnNext().
• Pull 5226: UnicastProcessor fail-fast support.

Bugfixes

• Pull 5163: Single.subscribe() to report isDisposed() true on success/error.
• Pull 5170: Fix LambdaObserver not cancelling the upstream.
• Pull 5182: Fix replay().refCount() leaking items between connections.
• Pull 5188: Fix flatMap emitting the terminal exception indicator on cancel.
• Pull 5207: Prevent tasks to self interrupt on the standard schedulers.
• Pull 5213: Fix window() with time+size emission problems.
• Pull 5240: fix CallbackCompletableObserver calling onError.

Documentation

• Pull 5189: Declare concatMapEager requires positive prefetch amount.
• Pull 5191: Correct java doc for refCount() return type.
• Pull 5208: Fix images of firstElement, flattenAsX, flatMapIterable, UnicastSubject and UnicastProcessor.
• Pull 5210: Better documentation on the abstract consumer classes (such as DisposableSubscriber).
• Pull 5223: Improve the documentation of Schedulers utility class.
• Pull 5230: Fix wrong comments in Functions “Function3” -> “BiFunction, Function3”

Other

• Remove anonymous inner classes.
  • Pull 5174
  • Pull 5177
• Pull 5183: Test to disallow anonymous inner classes.
• Pull 5187: Reflection-based parameter validator & fixes.
• Pull 5196: Add a few more @Nullable & @NonNull annotations to public interfaces.

[vanniktech]

Should we wait for UnicastProcessor to support fail-fast as well?

[akarnokd]

I hope he will post that within 5 days, if not, I'll do that last minute.

[akarnokd]

Closing via https://github.com/ReactiveX/RxJava/releases/tag/v2.0.8