release v4.1.0

release v4.0.5

Merge pull request stefanpenner#241 from ThomasConner/master

Only use vertxNext() when it is not undefined

release v4.0.2

release v4.0.1

release v4.0.0

release v3.3.1

release v3.3.0

Release 3.2.2

Release 3.2.1