parser: Enable these SVG attribute replacements

The most recent version of the HTML5 standard does **not** perform these
replacements. However, we are targetting the html5lib 0.95 tests, where
they are still performed. Hence, conditionally enable them for now until
we can bring the whole suite up to speed.

src/parser.c

@@ -192,12 +192,14 @@ static const ReplacementEntry kSvgAttributeReplacements[] = {
   REPLACEMENT_ENTRY("baseprofile", "baseProfile"),
   REPLACEMENT_ENTRY("calcmode", "calcMode"),
   REPLACEMENT_ENTRY("clippathunits", "clipPathUnits"),
-  // REPLACEMENT_ENTRY("contentscripttype", "contentScriptType"),
-  // REPLACEMENT_ENTRY("contentstyletype", "contentStyleType"),
+#ifndef GUMBO_HTML5_TIP
+  REPLACEMENT_ENTRY("contentscripttype", "contentScriptType"),
+  REPLACEMENT_ENTRY("contentstyletype", "contentStyleType"),
+  REPLACEMENT_ENTRY("externalresourcesrequired", "externalResourcesRequired"),
+  REPLACEMENT_ENTRY("filterres", "filterRes"),
+#endif
   REPLACEMENT_ENTRY("diffuseconstant", "diffuseConstant"),
   REPLACEMENT_ENTRY("edgemode", "edgeMode"),
-  // REPLACEMENT_ENTRY("externalresourcesrequired", "externalResourcesRequired"),
-  // REPLACEMENT_ENTRY("filterres", "filterRes"),
   REPLACEMENT_ENTRY("filterunits", "filterUnits"),
   REPLACEMENT_ENTRY("glyphref", "glyphRef"),
   REPLACEMENT_ENTRY("gradienttransform", "gradientTransform"),