Add HTML5 compatible Legacy module #56
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LegacyandTidy_Transitionalmodules provided by HTMLPurifier are not compatible with HTML5 elements. For example,<s>tag is not obsolete in HTML5, so it shouldn't be transformed to<span>. The same applies to<u>tag.Also the definition of
<font>element in HTMLPurifier's Legacy module is missing validation ofsizeandfaceattributes. And it's transform to<span>provides invalidfont-sizevalues for relative values of thesizeattribute.