Align only applies to the selected paragraphs.
When selecting several paragraphs and these paragraphs are wrapped in a non-editable block element, the align style is set into the block element instead of the paragraphs. With these changes the align style is only applied to the selected block elements.
Change changelog and fix edge case.
Merge pull request #1109 from najor/hotfix-rt57797-align-plugin

Align only applies to the selected paragraphs.