Fix empty columns being inferred as float in HtmlProvider
Remove superscript and subscript from table content
Fix wrong encoding in tests
Refactor HtmlInference to use same rules as CsvInference + Support units of measure in HtmlProvider
Whitespace should only be ignored in CsvProvider, not JsonProvider
Don't use JsonProvider in char refs test (close #528)
Merge pull request #708 from ovatsus/master

Html Fixes