Merge branch 'master' of https://github.com/Netflix/RxJava.wiki
fix flatMapIterable diagram fixes ReactiveX/RxJava#3288
Updated Additional Reading (markdown)
diagram for experimental takeUntil variant also, minor change to window() variant #5 diagrams
update window(windowClosingSelector) diagrams
add toSingle() diagram
Further correcting buffer() #6 diagrams
Correcting buffer (variety #6) diagrams
rearrange graffle source file
restoring inadvertently deleted diagrams
first commit didn't fully take for some reason...
restoring inadvertently deleted marble diagrams
version of timer() now called interval(); adjust diagram
flatMapObservable diagram
Single diagram corrections
new set of "Single" operator diagrams
Updated Reactive Streams (markdown)
changed the links to right location
Updated Implementing Your Own Operators (markdown)
Updated Backpressure (markdown)
new onBackpressureLatest operator
Fixes #2945
fixing urls to operator pages
Updated Getting Started (markdown)
Add link to Reactive Streams page