message: fix svg text vertical align problem
diff: @@ -353,7 +353,6 @@ define(function (require) {
  x = newPos.x;
  y = newPos.y;
  verticalAlign = getVerticalAlignForSvg(newPos.textVerticalAlign);
  - align = 'center';
  }
  attr(textSvgEl, 'alignment-baseline', verticalAlign);
  @@ -386,7 +385,7 @@ define(function (require) {
  }
  var dy = 0;
  - if (verticalAlign === 'bottom') {
  + if (verticalAlign === 'baseline') {
  dy = -textRect.height + lineHeight;
  textPadding && (dy -= textPadding[2]);
  }
  @@ -445,7 +444,7 @@ define(function (require) {
  return 'middle';
  }
  else if (verticalAlign === 'bottom') {
  - verticalAlign = 'baseline';
  + return 'baseline';
  }
  else {
  return 'hanging';
  