Slim down refresh and resize events

Fixes #903

src/Renderer.ts

@@ -320,7 +320,7 @@ export class Renderer {
       this._terminal.element.appendChild(this._terminal.rowContainer);
     }
 
-    this._terminal.emit('refresh', {element: this._terminal.element, start: start, end: end});
+    this._terminal.emit('refresh', {start, end});
   };
 
   /**

src/Terminal.ts

@@ -1944,7 +1944,7 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
     this.refresh(0, this.rows - 1);
 
     this.geometry = [this.cols, this.rows];
-    this.emit('resize', {terminal: this, cols: x, rows: y});
+    this.emit('resize', {cols: x, rows: y});
   }
 
   /**