New check for block-level-elements

Performing unformatting on a selection adjacent to a terminal whitespace sometimes caused a <br> to be erroneously inserted.
For example: inside <sup>example <sup>, if you select "example" without the succeeding space and remove the upper case, then a <br> tag will be added.
The fix checks, if the operation is within a block-level-element and does not add the <br> if it's not a block-level-element.
Merge pull request #1162 from rainerda/hotfix-0.24.x-rt57987-check_blocklevel_elements

New check for block-level-elements
[maven-release-plugin] prepare release alohaeditor-0.24.23
Added generated changelog mapping
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release alohaeditor-0.24.23-commercial
Added generated changelog mapping
[maven-release-plugin] prepare for next development iteration
Remove bogus mapping
Add 'code' html tag into the format plugin.
Merge pull request #1166 from najor/hotfix-0.24.x-rt58062

Add 'code' html tag into the format plugin.
[maven-release-plugin] prepare release alohaeditor-0.24.24
Added generated changelog mapping
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release alohaeditor-0.24.24-commercial
Added generated changelog mapping
[maven-release-plugin] prepare for next development iteration
Remove bogus mapping