Bugfix/queue get

[pchlupacek]

Fixes #1293.

Needs to be squashed before merge.

[pchlupacek]

huh travis complains about bincompat? All I have touched is private, so this seems odd :-(

[mpilquist]

We can add an exclusion for the Travis error.

Does this test pass too?

      Queue
         .unbounded[IO, Int]
         .flatMap { q =>
           q.dequeue.timeout(1.second) *>
             q.enqueue1(1) *>
             q.enqueue1(2) *>
             q.dequeue1
         }
         .unsafeRunSync shouldBe 1

[pchlupacek]

@mpilquist tests passes. As regard the exclusions, where to add them ?

[mpilquist]

https://github.com/functional-streams-for-scala/fs2/blob/series/1.0/build.sbt#L197

[pchlupacek]

Also going forward perhaps fro next release of fs2, I would like to explore, if we could implement Stream.bracket with similar signatures, essentially making canceling a stream instead of interrupting it. I think it could be possible and have bracket propagate the Case to finalizer, similarly like Bracket does in cats.