.Net响应式编程框架Rx的Java版本开源实现，是一种JVM语言，有Groovy, Clojure, Scala and JRuby版本的实现 此版本改进内容： Pull 3438 Better null tolerance in rx.exceptions.*Exception classes Pull 3455 OnErrorFailedException fix Pull 3448 Single delay Pull 3429 Removed the alias BlockingObservable#run Pull 3417 Add Single.doOnSuccess() Pull 3418 Add Single.fromCallable() Pull 3419 Add Single.doOnError() Pull 3423 Renaming Observable#x to Observable#extend Pull 3174 Blocking subscribe methods for convenience Pull 3351 Make BlockingOperatorToIterator exert backpressure. Pull 3357 Eager ConcatMap Pull 3342 Remove redundant onStart implementation in OperatorGroupBy Pull 3361 Safer error handling in BlockingOperatorToFuture Pull 3363 Remove unused private method from CachedObservable and make "state" final Pull 3408 DoOnEach: report both original exception and callback exception. Pull 3386 Changed javadoc for Observable.doOnRequest(Action1) Pull 3149 Scheduler shutdown capability Pull 3384 Fix for take() reentrancy bug. Pull 3356 Fix to a bunch of bugs and issues with AsyncOnSubscribe Pull 3362 Fix synchronization on non-final field in BufferUntilSubscriber Pull 3365 Make field final and remove unnecessary unboxing in OnSubscribeRedo.RetryWithPredicate Pull 3370 Remove unused field updater from SubjectSubscriptionManager Pull 3369 Lint fixes for unnecessary unboxing Pull 3203 Implemented the AsyncOnSubscribe Pull 3340 test/subjects: Use statically imported never() methods Pull 3154 Add Observable.fromCallable() as a companion for Observable.defer() Pull 3285 Added latch to async SyncOnSubscrbeTest Pull 3118 Implementing the SyncOnSubscribe Pull 3183 Refactored exception reporting of most operators. Pull 3214 Fix to Notification equals method. Pull 3171 Scan backpressure and first emission fix Pull 3181 MapNotification producer NPE fix Pull 3167 Fixed negative request due to unsubscription of a large requester Pull 3177 BackpressureUtils capped add/multiply methods + tests Pull 3155 SafeSubscriber - report onCompleted unsubscribe error to RxJavaPlugin 下载：https://github.com/ReactiveX/RxJava/archive/v1.0.15.zip RxJava 1.0.15 发布，现已提供下载下载地址
