new version v5.2.0 of Html2Pdf

• change the name of CoreExtension to Core\HtmlExtension
• change the namespace of all the html tags from Tag\ to Tag\Html
• change all the svg tag from internal methods to new external tags
• add the extension Core\SvgExtension
• add locale fi - thanks to @RWAP
• add $marginTop parameter on the createIndex method - issue #333
• add xx-large to xx-small font-size management - issue #320
• add colgoup html tag - issue #306
• fix locale pt - thanks to @marcoshenzel
• fix issue on testing the filename when asking for string output
• fix issue - clean locale before PDF generation - thanks to @quimcalpe
• fix issue on radio/checkbow width - thanks to @Ohda
• fix issue on line number when using style tag - issue #338
• fix issue on svg draw path - relative move was not implemented
• fix issue on svg draw path when Z directive is not separate from the next directive - issue #308
• fix issue on justify text with an inline html tag at the end of a line - issue #258
• fix better doc