Fix typo,

- Adds automatic downloadName to match original Parse API

spec/PurchaseValidation.spec.js

@@ -182,6 +182,7 @@ describe("test validate_receipt endpoint", () => {
         product.set("title", "a new title");
         return product.save();
       }).then(function(productAgain){
+        expect(productAgain.get('downloadName')).toEqual(productAgain.get('download').name());
         expect(productAgain.get("title")).toEqual("a new title");
         done();
       }).fail(function(err){

src/RestWrite.js

@@ -683,6 +683,10 @@ RestWrite.prototype.runDatabaseOperation = function() {
     throw new Parse.Error(Parse.Error.SESSION_MISSING,
                           'cannot modify user ' + this.query.objectId);
   }
+  
+  if (this.className === '_Product' && this.data.download) {
+    this.data.downloadName = this.data.download.name;
+  }
 
   // TODO: Add better detection for ACL, ensuring a user can't be locked from
   //       their own user record.

src/Schema.js

@@ -67,7 +67,7 @@ var defaultColumns = {
     "icon":               {type:'File'},
     "order":              {type:'Number'},
     "title":              {type:'String'},
-    "subtile":            {type:'String'},
+    "subtitle":            {type:'String'},
   }
 };