Groovy-Eclipse 3.0.0

[fvgh]

Upgrade of Spotless Eclipse Groovy formatter to Groovy 2.6 / Groovy-Eclipse 3.0.0 as requested in #237.

[fvgh]

@boris-petrov Think it will be part of next release...

[nedtwigg]

You have been busy @fvgh! Tons of great stuff from you in this release! Is there any work that you've done that's waiting on me to publish something from _ext? I think I need to publish _ext/eclipse-groovy, can you confirm? Also is _ext/eclipse-cdt also waiting on me?

[fvgh]

Maybe I should have been more explicit @nedtwigg . Yes, I need new versions for eclipse-cdt (9.4.4) and eclipse-groovy (3.0.0). I prepared already the corresponding integration branches.

[nedtwigg]

Published eclipse-groovy 3.0.0 and eclipse-cdt 9.4.4. To make sure I don't hold you up in the future, let's setup the following protocol in the future: send me an email (it's in my profile) with subject line "publish eclipse-groovy 3.0.0". That'll move them to the top of my queue, and make sure I don't hold you up, and that I publish the correct version.