message: Stops shadow blur appearing on the text as well as shadow
  Does this by resetting this.context.shadowBlur both if it not required whilst drawing the shadow, and also after drawing the shadow
  Fixes:
diff: @@ -189,10 +189,11 @@ export default class Text extends Sprite
  if (style.dropShadow)
  {
  + this.context.shadowBlur = style.dropShadowBlur;
  +
  if (style.dropShadowBlur > 0)
  {
  this.context.shadowColor = style.dropShadowColor;
  - this.context.shadowBlur = style.dropShadowBlur;
  }
  else
  {
  @@ -240,6 +241,9 @@ export default class Text extends Sprite
  // set canvas text styles
  this.context.fillStyle = this._generateFillStyle(style, lines);
  + // remove blur if set for the drop shadow
  + this.context.shadowBlur = 0;
  +
  // draw lines line by line
  for (let i = 0; i < lines.length; i++)
  {
  