Refactored the Image module. Added image.fromUrl method. Added image-tests.

filesystem/file_system.ts

@@ -49,8 +49,10 @@ var createFolder = function (info: { path: string; name: string; }) {
 };
 
 export class FileSystemEntity {
-
-    public getParent(): Folder {
+    /**
+    * Gets the Folder object representing the parent of this entity. Will be null for a root folder like Documents or Temporary.
+    */
+    get parent(): Folder {
         var onError = function (error) {
             throw error;
         }
@@ -93,7 +95,7 @@ export class FileSystemEntity {
             }
         }
 
-        var parentFolder = this.getParent();
+        var parentFolder = this.parent;
         if (!parentFolder) {
             deferred.reject(new Error("No parent folder."));
             return deferred.promise();