Guava 27.0 released

[Colin Decker]

Guava 27.0 was released October 18, 2018.

See the release notes for more information.

Important: ListenableFuture is now available as a separate artifact (com.google.guava:listenablefuture:1.0) from the rest of Guava. As part of that change, Guava now has a real (needed at runtime) dependency on com.google.guava:failureaccess:1.0. For more details, see this announcement.