v3.4.1

Reactor-Addons 3.4.1 is part of the 2020.0.2 Release Train (Europium SR2).

This is a minor release for OSGI support and some additional build changes.

It fixes the OSGI metadata to adapt to the new versioning scheme introduced in 3.4.0 (#239, #240):

• it goes back to a Bundle-Version similar to what we had in Dysprosium for releases (adding a .RELEASE to the OSGI version)
• it uses a .BUILD-{timestamp} suffix for snapshots, differentiating snapshots by their build timestamp
• it includes the full bundle version in the Export-Package clause