RxJava 1.0.0
Fix longCount -> countLong for Rx 1.0. See issue #5
Merge pull request #6 from ReactiveX/fixes-for-1.0

Fix longCount -> countLong for Rx 1.0. See issue #5
Update README with new artifact coordinates.
Merge pull request #8 from JakeWharton/patch-1

Update README with new artifact coordinates.