Added HtmlSpecialCharsCodeHints as default extension
A few fixes after review
A bit cleanup
Workaround for a display bug
Included a few missing special chars
Adressed issues after second review
Addressed issues after second review
Fixed two typos
Fixed an error while committing
Fixed issues after third review
Merge pull request #3237 from WebsiteDeveloper/HtmlSpecialCharsCodeHints

Added HtmlSpecialCharsCodeHints as default extension