Vert.x 3.4.0 发布，基于 JVM 的 Node 替代者

Vert.x 3.4.0 发布了。Vert.x 是一个用于下一代异步、可伸缩、并发应用的框架，旨在为JVM提供一个Node.js的替代方案。开发者可以通过它使用JavaScript、Ruby、Groovy、Java、甚至是混合语言来编写应用。

主要更新内容：

Vert.x Infinispan is a new cluster option and supersedes the JGroups option
HTTP and Web client redirect handling
Zero-config service proxies generation with a processor classified jar
a new SelfSignedCertificate to make easy to create tests and demos with TLS/SSL
Hystrix metrics in the circuit breaker
Handlebars templates can now fully resolve properties passed to them
JsonObject POJO mapping convenience
Http compression level option
Groovy support now uses extension methods and does not generate wrappers anymore
Dropwizard match metrics can now have an alias
RxHelper method for adapting an Observable to a ReadStream
RxHelper method for adpating a Handler <asyncresult> to a Subscriber
provide Alpine and Busybox docker images