Add enableBold back

Part of #1117

src/Terminal.ts

@@ -72,6 +72,7 @@ const DEFAULT_OPTIONS: ITerminalOptions = {
   cursorStyle: 'block',
   bellSound: BELL_SOUND,
   bellStyle: 'none',
+  enableBold: true,
   fontFamily: 'courier-new, courier, monospace',
   fontSize: 15,
   fontWeight: 'normal',
@@ -424,11 +425,12 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
         this.renderer.clear();
         this.charMeasure.measure(this.options);
         break;
+      case 'enableBold':
       case 'letterSpacing':
       case 'lineHeight':
       case 'fontWeight':
       case 'fontWeightBold':
-        const didCharSizeChange = (key === 'fontWeight' || key === 'fontWeightBold');
+        const didCharSizeChange = (key === 'fontWeight' || key === 'fontWeightBold' || key === 'enableBold');
 
         // When the font changes the size of the cells may change which requires a renderer clear
         this.renderer.clear();