Prepared for one color for hyperlinks

Added a Style in App.xaml so we can set the Hyperlink color. Right now
it's using the AccentColor, which isn't always looking good.
Renamed folder

Changed marketplace to store, as that's the new name
* Changed the color for hyperlinks to the same (Mango) color. Looks ok :)
* Upgraded to VS2012
* Added first version of WinRT app

* This was generated by IdeaPress- which is pretty cool :)
* Upgraded various nuget packages to latest version
* Changed image to UniformToFill for the post images
* Upgraded to version 1.2.0.0

* Added some changelog entries
Merge pull request #7 from Laumania/master

update