Merge pull request #906 from maschonber/hotfix-span-break

Fix inserting linebreaks in editable spans
Added changelog
Prepared commercial release
[maven-release-plugin] prepare release alohaeditor-0.23.6-commercial
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release alohaeditor-0.23.6
[maven-release-plugin] prepare for next development iteration