[openmq-dev] Prepare/stage 6.0.0-M2 build

[Piotr Żygieło <piotr@xxxxxxxxxx>]

Hi Team,

I'd like to run
https://ci.eclipse.org/openmq/job/1_openmq-build-and-stage/ to prepare
M2 build from ~current master. The main differences compared to M1
are:
- Align httptunnel package name in build system (#499)
- Remove synchronization from getResourceState() and make it volatile (#590)
- Update Jakarta Transactions to 2.0.0 (#595)
- Use final staged JMS API version (#601)

1. However before that - I'd like to modify jenkins job to not drop
history so fast, and preserve more logs rather than just one. I hope
it's ok.

2. There is a build parameter SPEC_VERSION, in the previous build set
to 2.0. But I looked at job configuration and couldn't spot direct
reference to this param. Is it used somewhere? I assume it is ok to
use 2.0 for M2 build again.

-- 
Piotrek