Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=464779

Enables parallel build mode.

Accepted without CLA after discussion with Eclipse Foundation legal
about very small patches that can only be implemented in one way.

See bug report for acceptance of Certificate of Origin.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=463884


Also-by: Gianfranco Costamagna <costamagnagianfranco@yahoo.it>

Fix bridge prefixes only working for the first outgoing message.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=464437

Inflight message count wasn't being decreased for outgoing messages using
QoS 2, meaning that only up to 20 QoS 2 messages could be sent. This has
been fixed.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=464436

Thanks to bdwalker.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=463479

Means that SOCKET is used as the socket type everywhere on Windows.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=462781

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=462780

Websockets clients are now periodically disconnected if they have not
maintained their keepalive timer.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=461619

Thanks to Mikkel Kirkgaard Nielsen.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=461705

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=463000

Thanks to Alexandre Zia.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=463241

Thanks to Aidan Gill.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=462154

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=461620