Updated poms to 0.5.0 for the new 2.2 release (apache-spark-on-k8s#536)

Update poms for 2.2 release 0.4.0 (apache-spark-on-k8s#508)

* Update POMs

* Update extensions/v1beta1.Deployment to apps

* Modified defaults on rss and ss

2.2.0-k8s-0.3.0

Merge pull request apache-spark-on-k8s#422 from liyinan926/branch-2.1…

…-kubernetes

Update pom to v0.3.1 for the new 2.1 release

Update pom to v0.3.0 of spark-kubernetes (apache-spark-on-k8s#385)

Preparing Spark release v2.2.0-rc6

POM update 0.2.0 (apache-spark-on-k8s#329)

Preparing Spark release v2.1.1-rc4

Updating images in doc (apache-spark-on-k8s#218)

Preparing Spark release v2.1.1-rc2