Fixed: reading any valid or invalid UTF-8 multi byte sequence.
Added: new unit HtmlSymb.
Moved: enumeration types TElemSymb and TAttsSymb from unit HtmlUn2 to HtmlSymb.
Added: TProperties.HtmlSym: TElemSymb.
Changed: display:none no longer skips block content in TSection.AddTokenObj().
Added: unit HtmlSymb to project files
Added: Quirksmode menu to Frameviewer Demo
Updated: demo.css
Merge branch 'HtmlViewer11' of https://github.com/JPeterMugaas/HtmlViewer.git into HtmlViewer11

Conflicts:
	source/HTMLUn2.pas
	source/ReadHTML.pas