Texture width is recalculated larger on subsequent call to updateText() when text has a stroke thickness > 1

In function override Phaser.Text.prototype.updateText(), don't include this.context.lineWidth in width calculation as it's already incorporated by this.style.strokeThickness.

Author: spayton

src/gameobjects/Text.js

@@ -379,7 +379,7 @@ Phaser.Text.prototype.updateText = function () {
 
     var width = maxLineWidth + this.style.strokeThickness;
 
-    this.canvas.width = (width + this.context.lineWidth) * this.resolution;
+    this.canvas.width = width * this.resolution;
 
     //calculate text height
     var lineHeight = fontProperties.fontSize + this.style.strokeThickness;