Fixes build break in iOS.
Moved a bunch of shared files into two shared projects: NetFx and Common.
Moves CryptoStream to shared location.
Adds reference to Common to PCL facade.
Creates Platform Common sharing project.
NetFxCrypto now shared.
Shared WinRTCrypto.
Shares Formatters using Shared Projects.
Fixes default namespace on shared projects.
Consolidates HashAlgorithmProvider into one shared file.
Adds a sharing project for symmetric crypto that isn't shared with Android.
Created last sharing dimension for the library projects.
Use Shared projects for unit test classes.
Utilizes Shared Projects in VS2013 Spring Update to make linked files more sane.
Adds a Windows Phone 8.1 Appx test project.
Fixes build of Windows Phone and WinRT test projects.
Replaces Windows Phone 8.0 test project with a new template that actually interops with Test Explorer.
Ignores test on platforms that it is known to fail.
Works around test runner failure on WinRT Phone project.
Removes ignored test.