Preparing for 0.6.0 development

[pingsutw]

What is this PR for?

Preparing for 0.6.0 development

What type of PR is it?

[Release]

Todos

• - Task

What is the Jira issue?

• Open an issue on Jira https://issues.apache.org/jira/browse/SUBMARINE/
• Put link here, and add [SUBMARINE-Jira number] in PR title, eg. SUBMARINE-23. PR title

How should this be tested?

• First time? Setup Travis CI as described on https://submarine.apache.org/contribution/contributions.html#continuous-integration
• Strongly recommended: add automated unit tests for any new or changed behavior
• Outline any manual steps to test the PR here.

Screenshots (if appropriate)

Questions:

• Does the licenses files need update? No
• Is there breaking changes for older versions? No
• Does this needs documentation? No

[tangzhankun]

@pingsutw Thanks for the contribution! One question, is it hard for us to update version information besides maven pom.xml?

Is it possible that we build a script for doing this task? It seems error-prone for one to review this and do manual changes.

[pingsutw]

When updating pom.xml, we could usemvn versions:set -DgenerateBackupPoms=false -DnewVersion=X.(Y+1).Z-SNAPSHOT, but we need to manual update other files, I can improve it in 0.6.0

[xunliu]

@pingsutw thanks you for you job!

[jiwq]

+1 Thanks @pingsutw for the contribution and @tangzhankun @xunliu @yaooqinn for the review.