Removing deprecated operators from operator decision trees
Fix Javadoc README link
Merge pull request #1665 from loganlinn/patch-1

Fix Javadoc README link
Update README.md
Update CONTRIBUTING.md

Added 0.x and 1.x branches.
Fix the bug that Switch doesn't propagate 'unsubscribe'
OperatorScan should check for MAX_VALUE on request
Ignore furthur messages after entering terminate state
Error Handling Unsubscribe and Terminal State
Make TakeUntil obey Rx contract
0.20.4 and 1.0.0-rc.3
Merge pull request #1672 from benjchristensen/merge-0_20_4

Merge 0.20.4 Fixes
fix typo
Remove CloudBees and Pull Request Logo

- migrating to Travis
- Makes no sense to show the pull request build status as there can be many and any of them could fail without meaning anything for the project.
Update README.md
NotificationLite.ErrorSentinel.toString

It should delegate the toString to the Exception, not reach into the message. Some Exceptions don't have a message so this could print "null" and not show the exception type.
Unsubscribe eagerly and drop queued onNext to emit onError

The queue will be drained to find and emit the onError.
Assert onError cuts ahead of onNext

... and doesn't allow intermittent onNext via a race of draining the queue and emitting (the draining thread must be where the skipping happens, not the producer thread).
Don't allocate an empty ArrayList for each Observable.empty call
Issue #1642 Fix null-emitting combineLatest