Merge pull request #1046 from cycomachead/autofill

Fix isAutoFill to allow false values

gui.js

@@ -233,7 +233,7 @@ IDE_Morph.prototype.init = function (isAutoFill) {
     this.corralBar = null;
     this.corral = null;
 
-    this.isAutoFill = isAutoFill || true;
+    this.isAutoFill = isAutoFill === undefined ? true : isAutoFill;
     this.isAppMode = false;
     this.isSmallStage = false;
     this.filePicker = null;