message: [svg parser] Fix parent attributes will overwrite children style bug.
diff: @@ -306,9 +306,11 @@ var nodeParsers = {
  var dy = xmlNode.getAttribute('dy') || 0;
  var g = new Group();
  +
  inheritStyle(parentGroup, g);
  parseAttributes(xmlNode, g, this._defs);
  +
  this._textX += dx;
  this._textY += dy;
  @@ -423,13 +425,14 @@ function parseAttributes(xmlNode, el, defs) {
  if (xmlNode.nodeType === 1) {
  parseTransformAttribute(xmlNode, el);
  + extend(zrStyle, _parseStyleAttribute(xmlNode));
  +
  for (var svgAttrName in attributesMap) {
  var attrValue = xmlNode.getAttribute(svgAttrName);
  if (attrValue != null) {
  zrStyle[attributesMap[svgAttrName]] = attrValue;
  }
  }
  - defaults(zrStyle, _parseStyleAttribute(xmlNode));
  }
  el.style = el.style || new Style();
  