title: How to fetch all photos from library
body: <p>The code shown below is what i've tried already.What I wish to achieve is to fetch all the photos from the device.Currently only a few are being fetched.How to modify the code so as to load all the images from device?</p>
  
  <pre><code>let fetchOptions = PHFetchOptions()
  
  let collection:PHFetchResult = PHAssetCollection.fetchAssetCollectionsWithType(.Moment, subtype: .Any, options: fetchOptions)
  
  if let first_Obj:AnyObject = collection.firstObject
  {
      self.assetCollection = first_Obj as! PHAssetCollection
  }
  </code></pre>