Fix fixedWidth, fixedHeight assignment issue

Author: rexrainbow

src/gameobjects/text/static/Text.js

@@ -1127,11 +1127,19 @@ var Text = new Class({
         {
             this.width = w;
         }
+        else
+        {
+            this.width = style.fixedWidth;
+        }
 
         if (style.fixedHeight === 0)
         {
             this.height = h;
         }
+        else
+        {
+            this.height = style.fixedHeight;
+        }
 
         this.updateDisplayOrigin();