Fix memory leak in bounded ReplaySubject due to retaining the node index
indefinitely once the Subscriber caught up.
Remove Unused Scheduler.parallelism

Before hitting 1.0 removing this API as it is not used.
Merge pull request #1882 from benjchristensen/scheduler-parallelism

Remove Unused Scheduler.parallelism
Fix Scan/Reduce/Collect Factory Ambiguity

This puts the seed factory on `collect` and removes it from `scan` and `reduce` due to ambiguity.
See https://github.com/ReactiveX/RxJava/pull/1883 and https://github.com/ReactiveX/RxJava/issues/1881
Merge pull request #1884 from benjchristensen/mutable-collect-scan-reduce

Fix Scan/Reduce/Collect Factory Ambiguity
Merge pull request #1866 from akarnokd/ReplaySubjectMemoryLeakFix

Fix memory leak in bounded ReplaySubject due to retaining the node index
Fixed unsubscription issue in buffer with time and a potential
concurrency issue in merge.
Whitespace fix.
Merge pull request #1886 from akarnokd/MergeFix

Buffer with time and merge fix
Version 1.0.0-rc.11
Version 1.0.0-rc.12
javadocs: remove leftover "@since" annotations; add param description
Version 1.0.0
Fixed incorrect error merging.
The backpressure exception might cut ahead of all onNext events.
Avoid request(0) to trigger a recursive call.
Avoid self-interrupting of a completing ScheduledAction.
Cleanup the worker.
Simplified the memory footprint.
Merge pull request #1893 from akarnokd/MergeDelayErrorFix

Fixed incorrect error merging.