Bug in the onBackpressure operators
Add a shim to make it so the public api for repeatWhen and retryWhen don't expose Notification<?>
forgot to commit the changes to the tests.
Merge pull request #1719 from abersnaze/onBackpressure-request-max

Bug in the onBackpressure operators
Merge pull request #1720 from abersnaze/dematerize-reWhen

Change repeatWhen and retryWhen signatures.