PLF-5556: Can not configure import mode for portal-data upgrade plugin
PLF-5557: Add configurations to migrate from PLF-4.0.x to PLF-4.1
Merge pull request #54 from tungdt/fix/4.1.x/PLF-5556

PLF-5556: Can not configure import mode for portal-data upgrade plugin
PLF-5817 change versions to align with PLF 4.1-M1
[maven-release-plugin] prepare release 4.1-M1
[maven-release-plugin] prepare for next development iteration
Merge branch 'release/4.1-M1'
Use a custom version (4.1.x-pkgpub-social-notifications-SNAPSHOT) to deploy binaries from Jenkins in Nexus + update plf version to use