Resync of the development branch with trunk
Updated version descriptors for further development of the plugin
Tagged the 3.0 release
Second release candidate for the plugin release 3.0
Documentation update for the upcoming release 3.0
First release candidate for the plugin release 3.0
Version in resource descriptor increased for next release
Development branch 2019-06-14_development recreated for further work
Development branch 2019-06-14_development deleted after reintegrate