removed backbone from VS solution,

renamed NzbDrone.Backbone to UI

UI/Mixins/backbone.ajax.js

@@ -0,0 +1,28 @@
+//try to add ajax data as query string to DELETE calls.
+(function (){
+
+    var original = Backbone.ajax;
+
+    Backbone.ajax = function (){
+
+        var xhr = arguments[0];
+
+        //check if ajax call was made with data option
+        if(xhr && xhr.data && xhr.type=='DELETE')
+        {
+            if(xhr.url.indexOf('?') === -1)
+            {
+                xhr.url = xhr.url + '?' + $.param(xhr.data);
+            }
+            else
+            {
+                xhr.url = xhr.url + '&' + $.param(xhr.data);
+            }
+        }
+
+        if (original){
+            original.apply (this, arguments);
+        }
+
+    };
+} ());