refined global object temp nodes has removal when removing nodes from container. Also added another unit test

dist/kinetic-core.js

@@ -873,8 +873,10 @@ Kinetic.Container.prototype = {
     _remove: function(child) {
         if(this.children[child.index]._id == child._id) {
             var stage = this.getStage();
-            stage._removeId(child);
+            if(stage !== undefined) {
-            stage._removeName(child);
+                stage._removeId(child);
+                stage._removeName(child);
+            }
 
             var go = Kinetic.GlobalObject;
             for(var n = 0; n < go.tempNodes.length; n++) {

src/Container.js

@@ -34,8 +34,10 @@ Kinetic.Container.prototype = {
     _remove: function(child) {
         if(this.children[child.index]._id == child._id) {
             var stage = this.getStage();
-            stage._removeId(child);
+            if(stage !== undefined) {
-            stage._removeName(child);
+                stage._removeId(child);
+                stage._removeName(child);
+            }
 
             var go = Kinetic.GlobalObject;
             for(var n = 0; n < go.tempNodes.length; n++) {

tests/js/unitTests.js

@@ -381,6 +381,40 @@ Test.prototype.tests = {
         test(stage.ids.myCircle === undefined, 'circle still in hash');
         test(stage.names.myRect[0] === undefined, 'rect still in hash');
 
+    },
+    'STAGE - remove shape without adding its parent to stage': function(containerId) {
+        var stage = new Kinetic.Stage({
+            container: containerId,
+            width: 578,
+            height: 200
+        });
+        var layer = new Kinetic.Layer();
+        var circle = new Kinetic.Circle({
+            x: stage.getWidth() / 2,
+            y: stage.getHeight() / 2,
+            radius: 70,
+            fill: 'green',
+            stroke: 'black',
+            strokeWidth: 4,
+            id: 'myCircle'
+        });
+
+        var go = Kinetic.GlobalObject;
+        
+        test(go.tempNodes.length === 0, 'shouldn\'t be nodes in the tempNdoes array');
+
+        layer.add(circle);
+
+        var node = stage.get('#myCircle');
+
+        test(node === undefined, 'node should be undefined');
+        
+        test(go.tempNodes.length === 1, 'tempNodes array should have one node');
+
+        layer.remove(circle);
+
+        test(go.tempNodes.length === 0, 'shouldn\'t be nodes in the tempNdoes array');
+
     },
     'STAGE - remove layer with shape': function(containerId) {
         var stage = new Kinetic.Stage({