[BlueOcean] group/list for ux discussions

[Michael Neale]

Hey all. 

A lot of discussion has happened on JIRA tickets, and sometimes in pull request threads (more so in tickets) around blue ocean (and other UX related JIRA comment threads which go on quite a bit). 

Some suggested this is best done on a maililng list. Given this is likely to be fairly "chatty", Tyler created: https://groups.google.com/forum/#!forum/jenkinsci-ux, so feel free to "join the conversation" on UX topics if that interests you. 

Thanks!