* Fix TWIG exceptions due non existent JS templates for ajax tab
* Fix DisplayBlock::GetRenderContent and HistoryBlock::GetRenderContent signature mismatch warning
* Add return type hinting on ButtonFactory methods
* Rename ButtonFactory::MakeAlternativeNeutralActionButton() to ButtonFactory::MakeLinkNeutral()
* Add ButtonFactory::MakeLinkNeutral() to visual test page
* Fix button spacing/padding when only icon or label
- TWIG: Change calls to object methods from simple notation (eg. oObject.Id) to complete notation (eg. oObject.GetId()) to avoid confusion with use of arrays and variables (eg. aObject.sId)
- UIBlock: $sId should not be first parameter as most of the time it can be ignored and generated by the system
- NewsroomMenu: Rename method for something more less ambiguous
- Html: Embed content in <div /> so we can easily find all such HTML fragments in the UI