Added support for timer reporter.

js/Reporter.js

@@ -99,6 +99,9 @@ Reporter.prototype.update = function() {
         case 'costumeIndex':
             newValue = target.currentCostumeIndex + 1;
             break;
+        case 'timer':
+            newValue = interp.primitiveTable.timer().toFixed(3);
+            break;
     }
     this.valueEl.html(newValue);
     if (this.mode == 3)

js/Runtime.js

@@ -75,6 +75,7 @@ Runtime.prototype.greenFlag = function() {
     if (this.projectLoaded) {
         interp.activeThread = new Thread(null);
         interp.threads = [];
+        interp.primitiveTable.timerReset();
         this.startGreenFlags();
     }
 }