Update MonoTouch.Dialog/Utilities/ImageLoader.cs

Make sure second request gets notification when the image is loaded.
Update MonoTouch.Dialog/Utilities/ImageLoader.cs
Update MonoTouch.Dialog/Utilities/ImageLoader.cs

URI should be html encoded
Update MonoTouch.Dialog/Utilities/ImageLoader.cs
Update MonoTouch.Dialog/Utilities/ImageLoader.cs

Fix: Make sure target filename is updated when dealing with requests queued on the request queue.
Bug description: If all download threads are in use, a request is added to the request queue. When one of the download threads is free, it will pop the request from the request queue and start download it, but the target filename is incorrectly set to the path to the first download ever initiated by the download thread.
Fixed incomplete LINQ statement and "n" variable name.
Fixed indentation
Merge pull request #157 from betai/master

Typos
Merge pull request #148 from patrikahlenius/master

Make sure new requests get a notification when the image is loaded. URI should be html encoded. Target filename is not updated when requests are popped from request queue.
Updated RootElement docs
Clear the text of the searchBar if the user taps the search's Cancel button.
This looks like a logic error that causes a crash for empty elements
Fixed some compile warnings
Merge pull request #163 from jstedfast/warning-cleanup

Fixed some compile warnings
Merge branch 'master' of https://github.com/migueldeicaza/MonoTouch.Dialog
Fixing incorrect position of the date picket on an iPad
Adding a BackgroundColor field to the DateTimeElement
Fixed EntryElements to use a separate key for password entries

Fixes http://stackoverflow.com/questions/13706729/why-are-some-of-these-monotouch-dialog-cells-appearing-empty
Merge pull request #165 from jstedfast/password-entry

Fixed EntryElements to use a separate key for password entries
Merge pull request #161 from gratner/master

Potential logic error