update CHANGELOG with new version

CHANGELOG.md

@@ -2,6 +2,16 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [Not released][Not released]
+
+## [1.0.1][2016-07-05]
+
+### Changed
+- you can now unset property by `node.x(undefined)` or `node.setAttr('x', null)`
+
+### Fixed
+- Bug fix for case when `touchend` event throws error
+
 ## [1.0.0][2016-07-05]
 
 ### Fixed

konva.js

@@ -4029,14 +4029,16 @@
         },
         _setAttr: function(key, val) {
             var oldVal;
-            if(val !== undefined) {
             oldVal = this.attrs[key];
             if (oldVal === val) {
                 return;
             }
+            if (val === undefined || val === null) {
+              delete this.attrs[key];
+            } else {
               this.attrs[key] = val;
-                this._fireChangeEvent(key, oldVal, val);
             }
+            this._fireChangeEvent(key, oldVal, val);
         },
         _setComponentAttr: function(key, component, val) {
             var oldVal;

src/Node.js

@@ -1771,14 +1771,16 @@
         },
         _setAttr: function(key, val) {
             var oldVal;
-            if(val !== undefined) {
             oldVal = this.attrs[key];
             if (oldVal === val) {
                 return;
             }
+            if (val === undefined || val === null) {
+              delete this.attrs[key];
+            } else {
               this.attrs[key] = val;
-                this._fireChangeEvent(key, oldVal, val);
             }
+            this._fireChangeEvent(key, oldVal, val);
         },
         _setComponentAttr: function(key, component, val) {
             var oldVal;

test/unit/Node-test.js

@@ -76,7 +76,29 @@ suite('Node', function() {
         circle.setAttr('foobar', 12);
 
         assert.equal(circle.getAttr('foobar'), 12);
+    });
 
+    // ======================================================
+    test('unset attr', function() {
+        var stage = addStage();
+        var layer = new Konva.Layer();
+        var circle = new Konva.Circle({
+            x: stage.getWidth() / 2,
+            y: stage.getHeight() / 2,
+            radius: 70,
+            fill: 'green',
+            stroke: 'black',
+            strokeWidth: 4
+        });
+
+        stage.add(layer.add(circle));
+
+
+        circle.setAttr('x', undefined);
+        assert.equal(circle.getX(), 0);
+
+        circle.y(null);
+        assert.equal(circle.y(), 0);
     });
 
     // ======================================================