added backbone local storage def

backbone.localStorage/backbone.localStorage.d.ts

@@ -0,0 +1,46 @@
+
+
+declare module Backbone {
+    interface Serializer {
+        serialize(item: any): any;
+        deserialize(data: any): any;
+    }
+
+    declare class LocalStorage {
+        name: string;
+        serializer: Serializer;
+        records: string[];
+
+        constructor(name: string, serializer?: Serializer);
+
+        save();
+
+        // Add a model, giving it a (hopefully)-unique GUID, if it doesn't already
+        // have an id of it's own.
+        create(model: any): any;
+
+        // Update a model by replacing its copy in `this.data`.
+        update(model: any): any;
+
+        // Retrieve a model from `this.data` by id.
+        find(model: any): any;
+
+        // Return the array of all models currently in storage.
+        findAll(): any;
+
+        // Delete a model from `this.data`, returning it.
+        destroy<T>(model: T): T;
+
+        localStorage(): any;
+
+        // Clear localStorage for specific collection.
+        _clear(): void;
+
+        _storageSize(): number;
+
+        _itemName(id): string;
+    };
+}
+
+export Store = Backbone.LocalStorage;
+