Update to LSP4J 0.15.0

[cdietrich]

Update to LSP4J 0.15.0
eclipse-lsp4j/lsp4j#631

[cdietrich]

done
@szarnekow @tivervac @rubenporras would be nice if you can start testing with the next Xtext snapshot

[tivervac]

done @tivervac would be nice if you can start testing with the next Xtext snapshot

How long until the full release of the next Xtext? We're a bit cramped on time ATM, making it hard to upgrade to the snapshot in the coming weeks.

[cdietrich]

We plan to release in roughly 2 weeks

[rubenporras]

@cdietrich , why when do you plan to release M3? Depending on that I would test M3 instead of the snapshot.

[cdietrich]

M3 is planned next monday and the release the monday after

[cdietrich]

@rubenporras M3 is out now

[rubenporras]

@cdietrich , thanks, I am updating our target files.

[rubenporras]

@cdietrich , I did not find any problem so far. We have upgraded our target files and plan to move to the release when it is out. Thanks for the good job.

[cdietrich]

thx for testing @rubenporras