[gentoo-java] Version bumps in Java overlays

[Petteri Räty]

19:01 <@Caster> I thought one rule was 'no version bump of in-tree stuff
to java-overlay'
19:01 <@Betelgeuse> Caster: Haven't heard such a rule but sure us devs
should use that rule.
19:01 <@Betelgeuse> Caster: I don't see a reason for us putting bumps there
19:02 <@Betelgeuse> Caster: Either it works and goes main tree or it
doesn't and goes experimental
19:02 <@Caster> well it was what I always proposed, we should set it in
stone
19:02 <@Betelgeuse> I can shoot a mail

So let's put the version bumps to the main tree to avoid bloating our
overlays even more. It's not meant as a staging ground.

Regards,
Petteri