merged from dev

src/Queue.js

@@ -0,0 +1,50 @@
+html2canvas.canvasContext = function (width, height) {
+    this.storage = [];
+    this.width = width;
+    this.height = height;
+    //this.zIndex;
+    
+    this.fillRect = function(){
+        this.storage.push(
+        {
+            type: "function",
+            name: "fillRect",
+            'arguments': arguments            
+        });
+        
+    };
+    
+       
+    this.drawImage = function () {     
+        this.storage.push(
+        {
+            type: "function",
+            name: "drawImage",
+            'arguments': arguments            
+        });
+    };
+    
+    
+    this.fillText = function () {
+        
+        this.storage.push(
+        {
+            type: "function",
+            name: "fillText",
+            'arguments': arguments            
+        });      
+    };  
+    
+    
+    this.setVariable = function(variable, value) {
+            this.storage.push(
+            {
+                type: "variable",
+                name: variable,
+                'arguments': value            
+            });
+    };
+    
+    return this;
+    
+};