LPS-44359 Because the test util forces to add discussions to every model meanwhile not every stagemodel's local service support comments we should make the comments export/import testing optional
LPS-44359 Enable comments testing where necessary
LPS-44359 Fix broken tests
LPS-44930 Uses [$PORTLET_NAME$] instead of [$PORTLET_TITLE$]
LPS-44887
LPS-44635 Use HTML Data Porcessor to normalise HTML.
Revert "LPS-44635 Use HTML Data Porcessor to normalise HTML."

This reverts commit ef60c9d97b592276df117a28ae4e55f50ba84cf4.
LPS-44635 - Avoid adding \\ if br element does not have previous sibling

Gecko based browsers add <br> element after text which is enclosed in elements,
like heading, list elements, etc. We will convert br elements to \\ only if
they don't have previousSibling, aka of they look like this: <p><br></p>
LPS-44255 Use overridden setContentLength method
SourceFormatter - fix incorrect line breaks
Source formatting - fix incorrect line breaks
LPS-44499 Prevent java.lang.UnsupportedOperationException
LPS-44499 SF